over all quite a unit - been like 15-20 years since last purchased a generator. quite a few improvements - bought the wgen9500dfc and it handles pretty much everything i used on it - except a/c - just havent needed a/c since i bought it. electric start is quite a luxury and it worked flawlessly in 10 below weather! Even though this generator is twice the capacity of my old one - its quieter. really like the option of dual fuel, and can hook it up to just about any electric configuration someone has. it was 99% assembled - only had to put on the wheels - really cant say enough about it. never thought i would say this but really, really like the plastic wheels. pneumatic wheels sound great but reality is a different story - over time they always loose air, even if its stored off the ground, and if you have the generator over time the tires end up with dry rot. this generator isnt any harder to push/pull than my other generator with pneumatic tires(had to go thru snow and uneven frozen ground). there are some minor issues which I havent liked. the on off switch has a plastic cover over it - i find it alot more difficult to flip the switch on and off because of the plastic cover. when turning the unit on there is an yellow light that comes on - a yellow light on all my other tools means - caution - something isnt right or ready - why not a green light. my generator is usually stored in a shed with no power to charge the battery - is it a 12 volt - can it be charged from a car - from a battery power pack - no mention in the manual about anything. the manuals - its kinda lacking at times. mine states thats there is a ECO mode switch - but there isnt one(manual is specific to my model only) and lastly my pet peeve - there isnt any dedicated way to drain the gas from the gas tank. i may loose power 10-12 times a year or a may not need my generator for 1.5-2 years. so i have to always drain out the gas and its a pain the way it is set up. lastly things just arent explained well in the manual - like this has a circuit breaker on it - but never explains what its for or when to use it - my last generator didnt have one - do i use it for everything? my generator is wired directly into my electric box – which has all circuit breakers so why do i need it - do i only use it for 120v electric cords? then we have the bonded neutral - which they tell you absolutely nothing about other than contact your electrician - i contacted 2 - the one that worked on my electrical connections and i contacted another - and neither knew anything about it. most of these are just part of a quick learning process - but could be better explained and in no way should it keep you from purchasing the unit. also i bought this because of the lower harmonic distortion that this generator has over other generators. over all this generator is a beast and am looking forward to many years of use