I purchased the ProSelect almost 7 years ago and I'm very satisfied with the quality and reliability.
The first two years I used it off and on for about 12 months. Finally, I got into a good training zone and have been using my treadmill for over 3 years approx 5 times per week 66 minutes per session, and my wife also uses it a few times a week.
Last year I had to replace the incline motor and only in the last few week the circuit board is now overheating, but when I look at the amount of time I have put into this treadmill I'm still very pleased and would highly recommend this model. Currently, I'm looking at puchasing another Pacemaster.
My only complaint are those meanless codes. Why pacemaster doesn't have the codes listed in the manual or on their web site is frustrating.