So far I am satisfied with this chair. I find it comfortable and an able to sit in it for long periods without any problems. I hope the seat mesh is durable and will hold out for a long time. I have noticed it seems to be weakening toward the front of the chirrups seat but maybe that is normal and it will not get worse. Gave four stars simply because I am concerned with this weakness and/or stretching. I am not overweight and not even close to the published maximum for this chair. At this time I would recommend this chair and feel it is a great value for the cost.
First note that you may or may not prefer how a mesh seat feels compared to foam seat but the ventilation surely helps to keep dryer when sitting for long periods. The quality of the components are impressive such as the metal sleeve inserted into the base. The ergonomics are reasonably comfy. I reversed the left and right armrests so that they no longer reach my desk when scooted forward.
The high back head rest with upper and lower mesh features where key features I was looking for. Back support is adjustable and works great for me. Seat does not tilt but is comfortable sitting up or leaning back.
Generally happy with purchase . Good value easy assembly .Minor damage on arm rest due to damage in packaging .We will see if they come good for damaged part .