Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for 3,300 / 2,500 Watt Generac GP3300i Portable Inverter Generator for
3,300 / 2,500 Watt Generac GP3300i Portable Inverter Generator
4.4 out of 5 stars
stars
565 ratings565 reviews
  1. 5 stars67% (378)
  2. 4 stars18% (103)
  3. 3 stars8% (45)
  4. 2 stars1% (8)
  5. 1 star5% (31)

Member photos

Sort by |
Showing 31-40 of 565 reviews
Nov 3, 2021
Reviewer name: Buff
4 out of 5 stars
4 out of 5 stars review

Verified Purchase

Amazed it started!

To be entirely honest I was amazed the generator even started after seeing the condition of the box it arrived in. The case of the generator was apparently damaged slightly where the front control panel is attached to the case but I didn't feel it would be a problem with the operation of the unit. I didn't have the opportunity to check the output voltage and frequency at this time but will get to that later. I took photos of the condition of the damaged box it arrived in and attached one to this review.

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Dec 18, 2025
Reviewer name: All Star Liquors
5 out of 5 stars
5 out of 5 stars review

Great Features, Nice Package, Nice Price!

Got a decent deal on this product, was looking for a nice inverter generator to serve as a backup option for our small business. My only gripes on this is that you have to take off the side panel to service the oil (would rather there be a way to check and fill oil without a screwdriver) and that the Off/Run/Choke knob was easier to turn and gave some sort of haptics or snap to indicate that you are on proper setting (Run vs. Choke).

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Jan 29, 2026
Reviewer name: Power Outage
4 out of 5 stars
4 out of 5 stars review

Power Outage - Generac 3300i

Within a month of purchase, we had a 30 hour power outage. I ran extension chords through the garage and into the house, and we powered a small space heater and some LED lights. We were very glad to have this generator to support us during this difficult time.

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Nov 25, 2025
Reviewer name: Greywolf43
5 out of 5 stars
5 out of 5 stars review

So far its perfect

I bought the iQ3500 for my off-grid cabin to help charge my battery bank when solar is not an option. I also use it to run a small a/c unit when its hot. I have over 120hrs on it and have never had an issue. Its very quiet and has never given me any issues. For what I need it to do it seems perfect.

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Dec 17, 2025
Reviewer name: Jordan01
1 out of 5 stars
1 out of 5 stars review

Problems

When you purchase a generac you will be less than impressed. They will fight you on every warranty claim, you can't even find a parts manual online. My generator is hardly 2 years old and have had nothing but issues and absolutely no help from Generac. You will regret it

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Oct 2, 2026
Reviewer name: Vistacruzer
5 out of 5 stars
5 out of 5 stars review

Reliable and quiet

We were without power for 11 days And our generator did a fantastic job

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Jun 21, 2026
Reviewer name: Shaloh
5 out of 5 stars
5 out of 5 stars review

Super Quite

Purchased for emergency outaage. It Was easy to set up and start, good to go. I was very happy to that it is very quite.

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Sep 14, 2018
Reviewer name: Denny
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Hurricane Tested

So far, it is running like a champ. Powering our refrigerator, freezer, TV, computer, WiFi and three lamps. Once Hurricane Florence is overand things settle down a bit, we might look into getting a whole house natural gas generator.

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Oct 4, 2020
Reviewer name: KCS
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Just out of the box and filled with the oil you provided and it started first pull.

An excellent value for the money, I will be using this for power at a remote hunting camp and it is easily portable for that purpose. Looking forward to the enhanced run time an inverter will bring to power generation "off the grid."

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434
Mar 20, 2018
Reviewer name: TLB
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

great machine,runs flawless

opened the box removed gen,poured in oil provided .Then opened vent on fuel cap turned switch to choke pulled the recoil once it started immediately and ran perfect.

Review from generac.com
Helpful?3KYRRTLYCX8F13600071434