Cool, thanks for posting! I've got a lot of questions since I saw one installed last!
What size unit is that?
Do you know how many amps it pulls when its running?
Does it cool down your camper faster than the roof AC unit did?
With doors open, does the single head distribute cool air all the way front and back?
With doors closed, does it get stuffy in the bedroom?
Have you tried running the overhead ducted vent fan to move air around?
Finally, what did it cost? Head unit, any installation costs, getting the rack made/mounted.