Are you tall? Have you found one to fit you? My hip-knee (femur) measurement is 22", but almost all chair-makers stick with the standard 19". Have any tall programmers out there found anything with a longer seat depth?
I've tried a lot of chairs over the years, with the main exception of the Aeron, and am still looking for the perfect one. Any ideas out there?
Herman Miller Aeron (which I currently use) Steelcase Leap Char (which I used at my previous 2 jobs)
The price for these chairs are high. But given I'm relatively healthy and productive with them, its well worth it.
You may like it because the seat "pan" isn't actually moving the seat. It extends the front of the seat further out. That way you don't feel like you're sitting off the back end of the seat.
Have you had a chair fitted, or read the instructions on fitting? If you haven't I highly recommend it. The Steelcase vendor was in my work the other day explaining proper posture on the chairs. You're not supposed to sit up, but rather recline at a slight angle.
I actually prefer this to the Aeron chair that I use at my office. I like it so much that I bought a second one for my girlfriend.