lasted about 6 months
I noticed several other buyers had the same problem.  The lights started flashing (both time and temp. )I could make it come on (by turning it off and on after a period) for a few days, but it was always super hot no matter what the temp was set on. DON'T BUY THIS.  I have a drug store heating pad that still works after 30 years.  I replaced it with this one because the old one was in such bad shape cosmetically.  I had to give this one star in order to post.
Rating: 1 stars