Ive used 2 Honda 2000's in tandem for our camper and I've been pleased. At Oshkosh I did see several smaller units like those at Costco which seemed to be working fine for folks. The can also be ran together where I do not think the Yamaha's can. The noise difference between the two is significant. Honda's are so quiet! I would go with them again. I use mine frequently at farm in the barn where I do not have electricity.