I got a MARKUS for a few years now and am using it daily for the last year and a half and have been doing fine. It's not adjustable except for the high and spring tension, but it fits me fine I guess. As long as I mind my posture I have no complaints so haven't found the need to find a new chair because I'm afraid they won't sit as nice, even when more adjustable.
But maybe the biggest reason for me to not have back pains might not be this or a specific other chair, but the fact that I don't need to sit in my car seat 2 hours a day, 5 days a week. You can do a lot with good posture and regular breaks when you're in an office chair, but in the car you are just stuck there for the entire ride.
But maybe the biggest reason for me to not have back pains might not be this or a specific other chair, but the fact that I don't need to sit in my car seat 2 hours a day, 5 days a week. You can do a lot with good posture and regular breaks when you're in an office chair, but in the car you are just stuck there for the entire ride.