I've heard good things about Wen, but went with Champion. I actually needed power in two locations, so have a 3500 watt 120V inverter, and a 7500 watt 240V inverter. Both have run flawlessly over the past couple years. The first year they were in constant use supporting an off grid life, this last year was only during power outages. Zero issues. I run regular gas with ethanol (not paying $10/gallon for no-alcohol 100+ octane race fuel, the only zero alcohol fuel available in the area) but run the carb dry and turn off the fuel valve.
