Anyone out there ever try a portable air conditioner in their Vanagon?

I'm looking at the MobileAir MA-9000AH:

http://shop.store.yahoo.com/air-n-water/momapo90btu6.html

Seems like a pretty cool unit (no pun intended).  I like the fact that it is
also a 1100 watt ceramic heater and a dehumidifier.  A little large at 15" x
18" x 33" high, but for long-term camping where there's shore power
available, it may be worth it.

Could keep me nice and cool at Burning Man...

Cheers,

Jeff