Not only does the Bowflex TredClimber work the large muscles in the thighs and buttocks, it also gives a good aerobic work out.  You have the option to use it only as a treadmill or as a stepper/treadmill.  The speed goes up to 4.0 which doesn't allow for running but if you walk with hand weights, you will really receive a tough aerobic workout.  It fits in a small space, comes with emergency release clip, cup holders on the control panel, easy to read display.  You can also adjust the stepper force by turning numbered rings.  A very well made piece of… read full review »