I keep a cote of messenger Cowboy Neal clones on the roof.

Never has CowboyNeal been more needed as an option!

I have had back surgery and I am often in pain. I got a Steelcase Leap for my office in January. It is the best chair I've had. There are lots of very well thought out adjustments.

We also have several HON chairs (Model #6542) around the office. They are very different from the Leap, and not nearly as adjustable, but they are very comfortable.

I have found that many chairs don't fit my back very well, but these do. Of course, YMMV.