Man this really looks like it will give you a great off road ride on any terrain. I do think it may be pretty expensive. I wonder would if it would have some use for emergency use on snow covered mountains, where speed and mobility would be important. It looks like it would give you some excellent traction.
I sell a gps vehicle tracking device and I love them, but they are not all that bad if you have one on your vehicle for tracking your young children. When the government start having them installed in vehicles with no options for the owner it may be a little scary for someone else tracking you with you not knowing. For the most part it's a great accerrory to any vehicle.