I own an Outfitter Apex 9.5 popup, and other than having less stealth capability, I don't see a lot of disadvantages. It gets better gas milage than a hard side, is better in a crosswind, can fit in a standard garage, has a full shower and marine grade toilet, a fridge with freezer, A/C, furnace, and plenty of headroom in the queen bed. The dinette, dinette bed and toilet can all be used with the top down, which works just fine for a quick overnight stop in a Walmart parking lot (although the bed is a little cramped for two. The camper, all up weighs about 2100# which works out pretty nicely on our F-250 with airbags and upgraded shocks. Going offroad is certainly feasible, but it's not a Jeep. I carry a spare crank for the roof mechanism, and the actually cranking up takes only a few seconds. Preparing to lower and lowering takes longer because items need to be stowed and the sidewalls properly folded in. We haven't experienced too many weather extremes, never much below freezing or above 95, but it's been comfortable in this range. I do like the light all the windows in the popup provide.
