I have no experience with the yamaha, so, I'm pretty one sided, but, used to use the Honda eu1000 on our 21 foot boat, man that thing was quite....nothing like microwaving up a jimmy dean breakfast sandwich in the middle of the mothball fleet when your out fishing
it always started first or second pull, no matter what. I used to work at a small engine repair shop, and, you come to appreciated that fact, cause, a lot of older generators will take 10-15 pulls sometimes
I've had good luck with my Yamaha 2000i super quiet and has the economy mode that only ramps the rpm to what's needed. It's always started on the first pull. But all the Hondas I've been around seemed to be great as well. I don't think you can go wrong either way
I'm on my third HONDA EU2000i and love it.
The first two I sold with my travel trailer, the new owner made an offer for the generators I couldn't refuse so I kept my eye out for one on C-L and snapped one up for $750.00.
Has anyone tried the one at Costco yet? It's a 2000w for 500 bucks. I don't think it would run the AC in my camper but I am still tempted to at least try it for the price....and the great return policy!