I saw it demonstrated on HSN with a size 14 model. She jumped right one, and started swinging. She worked for a min, and then said "enough!" complained that it was tough on her tummy muscles, and bragged how much she could feel it.

I am thrilled that we live in the age where folks will go post good and bad reviews. I want to hear from both sides of the fence. I will then throw out both extremes, and find the truth somewhere in the middle. The middle for this machine is, that its cheaply made, easily broken, tough on the knees, back, and customer service from the company is horrible at best. IF I were to get it, I would use Wal-mart/Target type places so I could just return it, without having to pay shipping.

Even the picture to advertise this machine, shows it CRACKED! If they cant even find one that isnt cracked to take a photo of the show off the machine, what does that say?

I have a problem standing for long periods, but I know I can sit, or kneel with more comfort than a solid stand up. I think this looked like so much fun, and it appeared to be a dream come true. This is why I am not normally first in line for most things. I wait for others to test it out, and tell me what they think.

You know if average folks with a decent health level are having problems, someone like me would be in trouble, and wasting my money from the get go.

Maybe I will get an inverson board.