And I tried everything! Since falling 3 stories from collapsed scaffolding in 1999 and several other injuries resulting from overuse/accidents, working on the computer for my business was a nightmare. I had developed 2 degenerated discs in my back, a frozen shoulder and had a pretty painful neck issue that required weekly chiropractic attention when I first heard about the Trekdesk on NPR. I'd tried every kind of desk chair, including the less conventional ones like Isokinetics, Inc and an ergonomic kneeling chair. I have an inversion table that helped, BUT NOTHING WORKED WELL! I'm really grateful that I came across the Trekdesk and was open to trying something different- so much so that I'm back here on Amazon writing this review! I've used the Trekdesk now for 2 yrs and my back has improved dramatically! It wasn't an easy transition though! I confess that I am one of those people who doesn't really like change when it comes to comfort! On a scale from 1 to 10, I'd say the transition discomfort was about a 3-4. At first it was a strange sensation to be walking and typing at the same time. I found I was more comfortable moving at a slightly faster pace than recommended or that I increased the incline on my treadmill and that worked too. Finding the right speed was the key to adjusting to the desk for me. It took about a week for me to get used to the Trekdesk. Since then, the frozen shoulder that took 8 months of PT to get to an 80% return with periodic regressions is now 100% ! I've enjoyed much improved posture and my lower back is soooo much happier through using the Treskdesk. In all, the improvements in my pain levels and back discomfort were almost immediate, which made putting up with the initial strangeness so worth it! Also, I lost weight - something i wasn't aiming for but i'm not complaining! SO-on a scale from 1 to 10, I give the Trekdesk a solid 20!