I have both, one with arms and one without arms. I prefer the one without arms. I prefer that the height be adjustable also to go with various stations in my sewing room== my table, my ironing station, my cutting station.
I agree with quiltstringz. Go and try out some chairs at an office supply store. You might be supprised what design you actually like. After this purchase, you can keep your eye out at garage sales, estate sales. I found my favorite chair, an oak desk chair, at an estate sale for $20. I have 4 sewing stations set up, and a chair at 3 of them.
Happy Birthday!