Have to turn on every 20 minutes.
I like the fact that the highest setting is hot enough for my back (arthritis). I hate the fact that it shuts itself off after 20 minutes. I can lie on a heating pad for hours. I like the easy to use and easy to see control unit. I hate that the cover comes off easily because it only has 1 snap. I hate the fact that the product died, almost to the day, after the warranty expired. I will buy something else.
Rating: 2 stars