I recently moved office and the company gave us all new chairs. They had eight different adjustments, and could presumably be made comfortable for most people.

I recently moved office and the company gave us all new chairs. They had eight different adjustments, and could presumably be made comfortable for most people. Most people didn't spend more than 30 seconds trying to adjust before giving up. They had no instructions and where very confusing, with weird locking mechanisms. Very adjustable chairs exist that are reasonably affordable. What is lacking is a standardised mechanism to make those adjustments easily and in the correct way for your particular body shape.