Before the Xpad, my laptop would overheat if I used it on my lap, on the couch, or in bed for more than a few minutes. And the heat it produced would get very uncomfortable on my legs. With the Xpad, it never overheats, my legs stay cool as well, and the machine is much more stable, comfortable, and much easier to use. At first I thought the device a bit expensive for what it is, but now I think it was worth every penny. I'm getting them for everyone in the family!