Originally Posted by Babaganoosh

That chair is pure torture. I had one at the last real job I had. It was terrible. The reason they are so good for your back is you can't sit in them for more than 30 minutes at a time. I grabbed a folding metal chair and put that at my desk with much better results.

I'd recommend going to an office furniture store and sit in one for about 20-30 minutes and see what you think. It seems to be about a 50/50 split between people who love the chair and people who hate it. Don't buy it just because of the hype and nerd appeal.