I'm not sure why people feel the Onan is so troublesome. I am on my second RV with a built in Onan and have not had issues with either one. We frequently use our generator and it does not sit for more than a couple weeks before it is fired up and used. Although I do feel they should be quieter, I will not give up the convenience of having a single TC fuel source and the push button start/stop of my built-in without having to string cables or step outside (we do many more rainy day trips than sunshine in my area).