I have owned a Pacemaster now for 6 years and generally will run on it an average of 20-25 miles per week. Overall I like it very much and there is no comparison between this unit and the "mass market" treadmills found at Sears or SportMart type stores. You clearly get what you pay for and Pacemasters are worth their money.
I had an issue with the electronics going out on my treadmill but it was covered under warranty. I paid $1300 for this new in 2003.