I have been on the lookout for a chair now that I am working from home. This is such a game changer especially with my lower back issues. Now the cats think its THEIR chair.
The lumbar function on this chair is great. Noticeably better posture and back soreness since I've been using. Generally it's pretty comfortable. I"m a shorter guy and the headrest is perfect for me but if you are taller it may be an issue.
The lumbar support is the main problem. After using the first day my lower back was killing me. It never got better. The lumbar support only moves about an inch up/down but it sticks out too far and needs a depth adjuster. That constant pressure into your lower back is just too much. It's going back.