Depending on the model you choose, they either have a mechanical winch that pivots the wheel down into the ground to raise or lower it, others have a hydraulic system that makes it much easier but follows the same concept. Leveling in the summertime you use blocks to set to the frame of the house on while you lower it. On the ice, you can do the same, or just simply set the frame on the ice, they will melt in a bit, but generally pop up pretty freely unless you have really let it get away from you. As far as setup is concerned, I feel they can be set up and enjoyed in much less time than the typical RV can be, so I wouldnt be afraid to go that route at all!