Still shopping, this may be a stupid question but I was wondering...if you're driving in Arizona with 110 degree heat....do you think the dash AC is enough or do you crank up the generator to cool the whole camper?
Driving back from Zion last year, it was over 110 for several hours. No discomfort whatsoever with the dash AC. I think it is actually more effective than the roof unit.
And you can always close the divider curtain (model dependent) between the living area and bathroom/bedroom while driving if the dash isn't cutting it. Same goes for heat in the winter I'm guessing.