I was a big Honda generator fan, and currently own two-2000w and a 3000w unit. Initially, all were very reliable and I used them constantly. Then came the day my usage decreased and my needs for a portable generator went down, so I put two away in storage and used just one of the 2000w for everything. It was a bad idea, cuz these gensets apparently hate ethanol fuels and both my stored generators after just 5 months no longer start. They are extremely vulnerable to ethanol during storage, and I learned it the hard way.
So in an emergency, I purchased an electric start Champion 4750w dual fuel generator (with 30amp RV plug), and two new 40lb propane tanks. I can run for over a week on propane, and starts every time. Now after 2 years, I can certainly recommend the Champion dual fuel generators operating only on propane.
From my experience, Honda generators are fine under continuous use. For any storage over a month, drain the tanks and burn the gas out of the carbs. Consider switching to non-ethonal fuels for all Honda gensets.