I needed a comfortable chair that would keep me alert while studying. I sat in all the chairs on display and the Kroy black mesh stood out as a clear winner. The mesh seating is supportive and comfortable. The chair back offered critical lumbar support to keep my back from slumping which I felt would help to keep me alert while studying. Would highly recommend for anyone looking for similar qualities in a chair.
Tried out chair in store before ordering (highly recommended for any chair). Was easily the most comfortable of the display models and it was on sale. Back is pretty comfortable. Lumbar support ok but would be nicer if it went a little lower in its adjustability. Seat angle is just tilted a little too far forward for my personal comfort. Obviously may not be the same for others so try it out. Mesh is very tightly woven which gives it a solid feel all the way around instead of having "squooshy" parts. Probably using 3 hours/day since purchasing a few weeks ago. Would buy again but not at full price.