I like the rolling chairs without any arms, that office supply & even WM & probably Target sell. The seat adjusts up or down and has a back. I think the one I have cost me about $30, several years ago. Sometimes when I have to rip a seam that went astray, I like to lean back for a few minutes.
I have another rolling chair with arms, but I only use it when I am doing machine embroidery. The arms won't let me roll far enough up to the desk when I am doing regular sewing. They prevent me from getting into a neutral position with my body, arms and back while I am sewing.
Yes, I do get some backache when I am sewing, but these chairs do help. I can't even imagine sewing without the rolling chairs. My friend brought an extra one to leave at a day long sewing retreat she goes to once a month. She is taller than I am and prefers the ones with the arms. She also does a lot of handwork, which I rarely do.