AC choices

I am now looking at two options. Either install a roof mount AC or a climateright cr5000. The like is below
http://www.climaterightair.com/cr-5000-ac
Thoughts?? The climate-right looks like a great choice that would allow me to cool tents....camper and a few other things. The side hook ups come with the unit for $499 which is a pretty good deal considering the price of portable units. This will also sit on the tongue while camping and not take up any precious inside floor space.
http://www.climaterightair.com/cr-5000-ac
Thoughts?? The climate-right looks like a great choice that would allow me to cool tents....camper and a few other things. The side hook ups come with the unit for $499 which is a pretty good deal considering the price of portable units. This will also sit on the tongue while camping and not take up any precious inside floor space.