I was amazed on easy everything was and how well it was all explained. Setup took less than 10 minutes and you just have to fill with the oil supplied and fill with gas. Getting the gas took the longest time of the whole setup process. Started on the first pull and ran like a champ. It runs quiet and and with very little vibration. I purchased this unit because I am sick out power outages and this is the best investment made for that problem. It will run everything that is needed when your power goes out, to get you by without damage to your home or your pocketbook. Best Investment I ever made, don't know what took me so long to get one!

[This review was collected as part of a promotion.] We used this generator when we went camping this past week...what a great thing to have along...works great for small projects around the house and for emergency back up power when the tornadoes come around...just an all around great portable generator to have around when you need it the most!

Bought this as a replacement for a Coleman 5500 Vertex that quit producing power. Assembly was straight forward for the wheel kit and handle. Started right up and is noticeably quieter than my old unit. I like the pull cord backup if the battery is dead. Its also nice that is has a fuel gauge. My complaints are the non-charging engine so the battery is only charged from the included 120 volt charger. The other complaint is the electric start switch is on the front panel of the unit and the choke which you have to set before starting and then adjust/turn off upon starting is on the end of the unit. Either move the switch near the choke or add a choke adjustment cable pull on the front panel.

Just before August 9, 2004 – August 15, 2004 I acquired the GP15000E for construction work that i was doing at the time. some of my co workers said that for just for me using portable power it was way overkill but hey i'm just that way. So the overkill came in handy when Hurricane Charley arrived. Charley was brutal, killed power every where. Lucky for me, overkill and I had a lot of Power to run. I was lucky my neighbor was an electrician because i was just going to run fans and and a fridge. he happened to be around to help. In exchange for him hooking Overkill directly to my house"s breaker box so we can run the air conditioner I let him and his wife and his two little babies bunk with us which he really appreciated and so did i for his service. It was a hot for those four days that we went with out regular power but Overkill was a great investment. Not only that i went through with Charley but also moved to Texas just in time for Hurricane Ike in September 1, 2008 – September 15, 2008. Went three days with out regular power on that deal. There has been a few storms since then that my trusty Overkill has pulled me through some power outages. I would recommend for anybody to have a Generator of some sort but i recommend Generac because so far i have not had any problems with my Overkill, I"m glad i have that tool in my war chest. As a matter of fact a storm blew through Huntsville Texas yesterday 3/24/2017 that knocked down trees on the power lines that left me once again without power for about 10 hrs. Lucky for me i have Overkill here to save the day. well that my story , hope this helps you out with your decision on what power to buy

I purchased this in 2005 because of the hurricane Wilma, I live in Pompano Bch. FL. It has set in the garage for 12 years . I started it last year to check it and put it back. By the way it started right up no problem. Then along came Irma this year. I had pulled it out and got ready. I lost power Sunday and didn't get it back till the following Saturday. The generator ran flawless and I never shut it off. I kept the neighbors food. It ran my central ac, refrigerator, a wall ac,freezer,4 TVs,4 ceiling fans Water heater, pool pump, lights, microwave, boat lift and never stopped once. The best thing I've purchased. It sat along time but was there when I needed it. Thank you for a great product. My wife has 2 different forms of stage 4 cancer and we really needed this life saver. Wishing you all the best and hope we never need it again but if we do I know it will be there. Sincerely Pat

I purchased one of the older versions of the GP15000 and have used it in many different applications. Ranging from running out door sound, stage and lighting for various different music festivals I have help run to running an entire 3 BR 2 Bath house with a 3 ton AC unit. The engine used on these generators are easy to maintain and are extremely durable. With a huge 16 US Gal. fuel tank, I have had my generator run as long as 8 to 10 hours, depending on the load within my household, and last me an entire night running my stage setup I have. Love the fact that there is a lift point on the generator to be able to use lifting equipment like an engine hoist to pickup my generator and place in the back of my van to transport. (Generator weighs in over 350 pounds) I also love the feature of having the large inflatable wheels to move such generator around without having to exhaust a lot of energy. Plenty of standard household 5-20R duplex wall outlets (One of the 5-20R duplex outlet is GFI ) to having the mammoth L-14 50A 120/240V AC outlet for large loads. If you are ever in the market for a high power output generator and need it to be portable, The GP15000 and the GP-17500 is the go to power plant.

Last night was the "maiden voyage" of my new 8000 Watt generator, as we lost power from the explosion of a local transformer from heat related power overload. GENERAC to the rescue...it took all of 10 minutes to roll the generator out of the garage, hook up the power cable, start the machine, flip the transfer switch and back to the comfort of lights, TV and A/C, etc. While my old 3500 WATT generator performed well for the past 12 years, A/C was not an option, nor was using the microwave and other applicances. My new GENERAC machine performed flawlessly with gasoline consumption and noise both being reasonable. Bought it directly from GENERAC; the process and delivery were convenient and easy. I recommended this unit to my next door neighbor last night and he bought one this morning, and I would recommend GENERAC to everybody. Great product and great customer service (sales and delivery).

I live in Puerto Rico, and since Hurricane María destroyed our power grid, almost 5 years later we are still having constant island-wide blackouts. The most recent in April, 2022, all the generating power plants on the island shut down due to a fire in a switch yard. Four days later, half the island is still without power, including us. I've used it once before during a brief blackout and it did well. Today it looks like we're going to be without power for at least another 24 hours (I had power restored two days ago but today it went out again). I plugged it in to the house with a manual transfer switch. Right now it's nightfall, and I am running two refrigerators, kitchen and living room lights, all ceiling fans running, and not a hiccup from the set. The electrician that installed the transfer switch says that if power doesn't come back later, I could turn off the refrigerators and turn on one bedroom inverter mini-split air conditioner. Thoroughly satisfied with this product. Thank you Generac. Now buying a whole house automatic propane or diesel set and/or a Powerwall with Generac seems like a wise investment. Until then, this GP6500 will do just fine.

This unit is a very high quality product. You will be impressed right out of the box before you finish the simple assembly. Lots of features. Reminds you when maintenance needs performed. I especially like the four outlet cord that comes with it. This cord allows you to use both legs of the 240 volts instead of just one side. This gives you the ability to use the full rared output of the generator not just 1/2. The receptacles on the control panel also allow for this same usage. the automatic throttle control saves fuel as I usually do not need 8000 watts of power when dry camping with my RV. I just retired from 47 years in factory skilled trades maintenance and I am a skilled trades instructor at a local 2 year college and I am very impressed with this generator.

This generator has great power runs well when it's on but every day you have to jump start it because there isn't a alternator that charges the battery when it's on. It's a hassle trying to always make sure the battery has enough juice to start the generator. If not your out of luck.