We like our Cardinal that we have, bought it new and have had almost zero problems.It is a so-called 4-season camper has heated tanks Exedra but I agree with the other person that said it would be quite expensive to use in a real winter situation like here in Nebraska. Have used it once in the teens and everything worked fine but the heater runs a lot. My Cardinal would be fine for an occasional few day trip someplace where it was cold but not for long term. I think you would have to spend a lot more money on a high end unit to be comfortable. Like a mobile suites.