I have both. One of my machines has a narrow area where your legs go and to get close enough so there's no back strain, I use a folding chair. But not just any kind. I found one of the old wooden ones like you used to see in country Churches. I got a kitchen cushion set for it and it's very comfortable to sew using it. I do have a rolling chair for the other machine and it's wide enough that I can scoot it up under the cabinet so it doesn't take up a lot of room.