I have had my Honda 2000 and A/C (9200 btu) since about 2005. I have not had the need to run my A/C and microwave at the same time. I do not see where I will ever need a second Honda, and if I did it would probably be the Companion with the 30 amp plug.
Walmart has the adapters for $5. The single honda 2000 will not put out 30 amps, so what is the point of a single Honda with a $160 30 amp adapter? I did waste the $15 for the 12-volt charger. It is probably the most useless thing I have purchased.
As for the Yamaha being the same generator but a different color, I have to ask how anyone could come to that conclusion? The Yamaha is cheaper, but also I believe it is much harder to find parts and a repair shop. I do have a 6000 watt Yamaha, and it has not had any problems for over 20-years. All most unbelievable. But, I have to order an air filter simply because the few Yamaha dealers in my area do not stock parts for nor repair the Yamaha generators.
Wayne