I bought a 5500w Champion inverter generator that died after few hours of running.
I've spent weeks calling Champion to get a return authorization from corporate. I would never buy or recommend buying Champion product unless you're willing to go through hell returning their worthless crap. I never dealt with such horrible customer service.
BE AWARE.
Tip for consumers: You better be mechanically inclined to deal with Champion reps. They will have you pull spark plugs out , bleed gas from carburetor, drain or add oil, pull air filter out and bunch of other useless trouble shooting exercises while they have you on the phone.