I finally had the opportunity to use these on a 30 minute drive when it was still chilly and here's my review. The low setting is perfect. It is a tad too warm for my preference when I was wearing shorts & tee but it was overall perfect for taking the edge off without having to roll up the windows. On the high setting they are HOT! I attended a car show Saturday and it was about 50 & cloudy. I never put the top up so this was a perfect opportunity to see how these perform. On either setting, these seats are at full temp in about 5 minutes...10 tops. My butt was uncomfortably hot and honestly burning at times and had to flip it to the low setting for a few minutes before going back to hot only to roast again. Personally, I'm glad they're too hot rather than no hot enough. At least I can feel comfortable to warm up the seats on high as I'm warming up the car, then flip them to low when I'm driving or something.
