Two Yamahas here. See my signature. Went with Yamaha because have had several other Yamaha products (motorcycle, AV receiver, they make fine musical instruments as well). Got mine from Wise.
Two of them provide full 30 amps for your trailer, as do the Hondas. I can also use one or two for backup power at home.
I run non ethanol gas in them and start them at least once a month.
2012 Toyota Tundra 5.7 Litre DoubleCab
6 speed, 4.30 Limited Slip, Tow Package
2013 Jayco White Hawk 27DSRL
2010 Jayco JayFlight 26BH sold
Yamaha EF2000is Generators (2)
1996 Honda CB750 Nighthawk