We found mainly mixed reviews for the ProForm 750 treadmill. This treadmill's belt broke down during one major test simulating a year of use, and an expert treadmill source ridicules its warranty --12 years on the motor, but a mere 90 days for everything else. Oddly enough, a handful of owners posting on Amazon.com complain about breakdowns and poorly made parts, but owners posting on Sears.com (which sells ProForm treadmills) are almost unanimously positive.
We found the best reviews of the ProForm 750 treadmill at TreadmillDoctor.com, a site that doesn't sell the treadmills it reviews. Consumer Reports also included the ProForm 750 treadmill in its 2006 category roundup (but not its more recent tests). The ProForm 750 treadmill also receives some owner-written reviews at Sears.com and Amazon.com.
What sinks this treadmill in the estimation of TreadmillDoctor.com is that the motor has a 12-year warranty, but the rest of the machine is only covered for 90 days. They do say it has a nice design.
Review: ProForm 750 Review, Clark & Jon Stevenson
Although it's not included in Consumer Reports' 2007 roundup, the ProForm 750 was tested in 2006 by simulating extended use.
Review: Treadmills, Editors of Consumer Reports, Feb. 2006
The handful of owners posting here are far from happy with their purchase of the ProForm 750 treadmill, complaining of frequent breakdowns and broken parts.
Review: ProForm 750 Treadmill Review, Contributors to Amazon.com
A handful of owners post their experiences with the ProForm 750 treadmill, and compared with the serious complaints found at Amazon.com, their comments are unanimously positive.
Review: ProForm 750 Treadmill Review, Contributors to Sears.com