I'll start by saying I don't presently own a generator
and my TT doesn't have A/C so my needs are pretty light
When I did my research on a portable inverter generator
a friend at work introduced me to the Ryobi 2200-Watt Gasoline Powered Digital Inverter Generator
that is sold exclusively through Home Depot.
Ryobi 2200-Watt Gasoline Powered Digital Inverter Generator-RYI2200 at The Home Depot
I found it intriguing and would probably own one if I needed it right now. It is very portable, quiet, runs smoothly and starts easily, and can be "daisy chained" with another for additional output if you need that sort of thing. It's less than $600 ($549 at the time of this posting).
He has used it regularly for a year with no problems and it's quite a bit cheaper than a Honda or Yamaha. If cost were no object, or if I needed more output or 30A, I'd opt for a Honda. I used to work for Honda many moons ago and I have a lot of respect for their products. But for as little as I would use it (I rarely boondock), it would be hard for me personally to justify the cost of a Honda. To me, this Ryobi, especially after seeing (and hearing) it run in person, seems to be a great compromise.