My wife and I purchased a 369RL last month and had the rear AC swapped out for the AC/Heat Pump (HP) and couldn't be more pleased. It is so nice at night (45 to 55F) to have the Dometic thermostat kick on the HP which provides really nice warm air distributed throughout the coach with the bedroom getting warm, too.
Just thought I'd mention how nice the HP works given that it's not a very expensive option ($150 ?) in case someone is buying a new coach. The HP works better than I thought it would and it's great not to have to go through propane or set up small electric heaters. I understand the HP doesn't pump heat when it gets down to 30F but it sure is nice above that.
--Larry