I'm still trying to get used to the lumbar support. It pushes me out of the seat a little and I find that I sit up and don't rest my upper back against the chair so I have some fatigue in my neck by the end of the day. I do think that it probably is good for posture but I think I'm going to try removing the pillow piece that slips over the lumbar support and see if that works better at keeping me in my seat. I think the pillow may be a little overkill on the lumbar support but it's nice to have for those that want it. Otherwise the seat and upper part of the chair are very comfy.