Andrew, I'm running a Generac Quietpac 40G and have for almost 5,000 hours. I'd consider buying another if I had trouble with this one. I've only ever had one situation where I had to blow the carb out and it's been great since. My genset runs about 10-12 hours a day, every day I work. It powers my 15k a/c and all my electronics all day everyday. PM me and I'll give you a lead on a low priced seller I've noted.
I'm considering a move up to either a Honda EV6010 or the Generac 50... Height is my issue as I've dropped it into the belly of my rig, midships on the drivers side.
1984 28' Funeral Coach
Former Rolling Showroom & PuttLab (now party bus)
"I'm not an expert. But I did sleep in an Airstream last night."