I use an adjustable height office chair with no arms. I think the main thing is to find a chair that you can adjust high enough so your arms are bent at a 90 degree angle at the elbows, so you don't tire your shoulders from long hours at the machine. If being too high for your feet to touch the floor (if you are short for example), you can always add a box or lift of some sort under your foot pedal. I am tall, so don't have this problem. Measure how high you need to be when sitting at your sewing machine before you go to the store and take a tape measure with you, so you can see if the chair goes high enough, before you buy it.
Last edited by fireworkslover; 05-03-2014 at 10:03 AM.