I bought a 'good' adjustable office chair from Staples and removed the arms so it is more usable. I really like the chair. It took my DMIL less than a week to burn the seat cover with an iron. There is a spot in the middle of the chair where an entire outline of her iron is melted right into the foam. This was about twelve yrs ago and I get to remember it every day when I sit at my machine. Sometimes I think she could break a bowling ball!
peace