It’s gets hot really fast and is very soothing. However, I feel like no matter what temp you put it on (levels 1-6. I usually do 4, 5 or 6), it seems to go to the same temp after about 15 minutes. Example: if I start it at a 6, it goes to a 6 quickly, but feels the same as a 4 after about 15 minutes. But maybe that’s a safety precaution? Still very warm and a great size!