My wife and I purchased a Proform 390 treadmill from Sears in late February 2011. She began having problems with the treadmill, speeding up randomly, which above all else is unsafe. By the time I contacted Proform the 90 day warranty had expired even though there is a 5 year warranty on the motor (which I feel is part of the problem). The people at Proform had me recalibrate the machine and then had me remove the motor cover and reset a reed control, (which was something a technician should be doing, but I am pretty handy so I agreed to do it. After recalibrating it once more and realizing it was not working properly the woman on the phone told me the machine needed a new controller. I was told by Proform that I would have to call Sears for that. I spent the next hour and a half on the phone speaking with a total of 5 people who gave the royal runaround. Finally I spoke to a Supervisor named Monique and she was absolutely useless. I explained to here that several other people had told me they would cover the part but not the labor. I asked if they would send me the part and I will put it in myself because they wanted to charge me $100 to fix a $400 machine that was less than 4 months old. This is the second time I have had problems with Sears in as many purchases and I will never purchase anything else from them. I am concerned that my wife will be injured using this fairly new treadmill, but Sears just doesn't seem to care. Monique told me she was only authorized to give me a discount on the labor although she never made that offer. Sears and Proform will never again see my business.