I hate to sound like some fan boy, but check this out... Last Saturday at TGP my rear warmer quit heating. I found Josh from Stickboyz and asked if he had any to rent to get me thru the day. With my best puppy dog face I explained I had got the warmers from Derek about a month prior and had used them two days. I was hoping for maybe a half price rental and the info on where to send the bad one for repair. Heck no, Josh has me bring the warmer over and replaces it with a brand new one. These guys are the real deal.