Wow, I must have gotten a real lemon with my ErgoPro. At school we have a Golden Ratio, a QuickLte, a Stronglite NaturalPro (or whatever, the wooden ErgoPro) and an Oakworks Portal Pro 3. As I said previously I returned my ErgoPro due to the fact that everything squirmed and creaked and flexed when I sat on the thing...made me feel like I weighed 500 lbs! I've since spent an extra $100 and purcahsed an Oakworks Portal Pro 3 package from bodyworkmall.com for $450, and the quality difference is night and day. I'm not here to slam anyone's preferences, just saying what I found. BTW massagewarehouse.com NEVER returned my e-mails. I had to do the return through Stronglite, and they took care of everything in a very courteous manner. I'm happy, everyone else is happy w/their Stronglites, so I guess all is good.