I have 3 other heating pads, but I realized that 90% of the time, I used them for only a smaller area on my body. Perhaps a shoulder. Or, my hand. Or, my neck. I was using only 20% of these large pads and in the summer, when it's already hot, the large pads would cause me to sweat like I was back playing basketball in high school. And, I almost always used just 1 heat setting on the larger pads. And, i almost always never used them long enough that the 2-hour shutoff time would matter. I would use these for, at most, half an hour, so never needed this added function. So, for about 10 bucks, plus it's having the thin sponge on the inside which does help to make the pad much hotter, this is a great product and an even greater value. No, I am not getting anything to write this. So, I have this a 5 star rating.