We have the bedroom AC in our 35FL, but we've had it less than a week so we haven't camped in it yet. During the walkthrough the tech suggested setting the bedroom thermostat 5 degrees warmer than the living room at night (70 in the living room, 75 in the bedroom). This way the big AC does most of the work, but the bedroom AC will come on if needed.
2005 Honda Gold Wing
2010 Dodge 3500 SRW
2013 Cedar Creek Silverback 35FL