We owned a PW Excel for many years and loved it. Did not have a generator and didn't miss it. We camped unhooked many times but usually drove around during the day, visiting a national park, for example. We camped in freezing weather many times and never had a problem. We slept in travasaks and warmed up the van in the morning.
I couldn't help you with staying parked in the same place for more than a few days, we were always on the move. With experience and forethought, I suspect you will be able to do whatever you want. Enjoy your RV and good luck.