I did my research and decided to go with a Champion 3100 watt inverter-generator. Sound level compares to Honda and Yamaha at a much lower cost.
Great warranty, good owner reports, comes with wheels and folding handle. It has a 30 AMP RV ready plug and two 20 AMP plugs so no need for adaptor.
Will run my 13,500 BTU A/C no problem. Great instructions and Quick Start Guide. Good service with "800" number to call if any problems. Compact and comes with tools, battery
charging cable and cost way less than any Honda or Yamaha....Happy Camper.
Mine cost $749.00 at Cabelas where several employees have them and they think they are tops!
Note: unit is not shipped with motor oil so a trip to Walmart or the auto store is required to get oil and a gas container for your fuel. Excellent run time in economy mode when you are not using A/C.