When covid started the first thing I did was buy a cheap chair off of amazon, thinking that this would be a short term work from home situation. This was one of the worst mistakes I could have made. My lower back and shoulders were constantly strained (far more than I even realized). After a week with a new chair from OFS, my back, shoulder neck are feeling better already. Add in the level of professionalism that a sharp chair brings to online meetings, and I couldn't be more satisfied.
I would recommend this chair and company to all of my friends.