I have been looking at these as well. I did like the propulsion system of the H2X better. It uses a propeller to create the swim current instead of jets. For me anyway it seemed to give a smoother wider swim than the other models that I looked at. I also liked the steel frame. Terminator mentioned the insulation, the H2X was insulated better than most of the ones that I looked at anyway. Worth a look. Let us know what you decide.