Our AC is broke this summer and its going to be a while before we get it fixed, so despite my previous statements, we had turned the tub to 95 on the few really hot days we have had this year. However, the heat broke and we had a nice cool weekend. I ran a fast 10k race this weekend so last night I was tired and sore, cranked the tub up to 104 and got a great reminder of why we bought it and still love it after 6 years.