Both the Bowflex Max Trainer and the Bowflex Treadclimber will likely burn more calories than a standard treadmill or stair climber with the same effort and time committed. (homefitnessguru.net)
Bottom line: The Bowflex Max is a great machine, but you can get a great HIIT workout in 14 minutes with any elliptical or stair climber type trainer of decent quality. (carbscout.com)
My main form of excercise is running with the occasional stair climber. (health.com)