we have had 2 popups, one faily nice, but got rid of both after 2 years of use. my main complaints? though compact to tow and store, you need a big cargo area in your vehicle to store all the stuff you can't pack in the camper. we were able to slide some items in after it was collapsed, but not enough. setup was faily easy, but leveling was a lot more difficult because it has only 2 wheels and the jacks were unsubstantial. neither of ours was big enough to have a toilet. we had a sink and stove - useless items - we always used an outside stove and 5 gallon bucket instead. i would have traded for a refridgerator anyday. after all was set up, we would have to transfer all the items from the truck into the camper. if it was raining we were screwed. and when you got home from camping, the last thing you want to do is jack it back up so you can clean it and empty it out. but you have to or you'll have a nasty surprise next time you use it.
i realized how tedious it was when we camped with friends one weekend who had a standard camper. they pulled up, and dad spent 10 minutes leveling the camper while mom started cooking dinner IN THE MICROWAVE with food from the REFRIG - something i would have died for that rainy friday night at 8 pm!
my advise? look seriously at a standard camper like they had. it was very light weight and compact - the bunks slid out just like a popup. we could tow it with our 4-Runner. and the price compared to a Nice pop-up was fairly close, a bit more but so much more livable. they had a bathroom, and would plug the camper in at home so they didn't have to unload the refrig/freezer each week.