Techni Mobili High Back Mesh Office Executive Chair with Neck Support in Color Grey

I gave it two stars because the mesh has the perfect amount of give, and if one were very tall (I would guess anywhere between 6'3" and 6'5") and still weighed less than 200 lbs. it might be very comfortable.Unfortunately, the lumbar support is not adjustable, and as I am only 5'10" tall, it is right in the middle of my back. It seemed comfortable at first, but the more I sat in it, the more sore my back became. Yet I have been stubbornly sitting in it for a couple of months now because I didn't want to deal with return shipping. My back is so sore at this point that not only am I unable to sit in the chair for more than like 20 minutes, my back has started to hurt sometimes even when I'm not sitting in it. I'm not picky about chairs either - I'm sitting on the floor pretzel-legged typing on my coffee table right now, and it is significantly more comfortable than sitting in this chair.Long story short, I can pretty much guarantee that you will seriously regret purchasing this chair unless you are very tall, and if you have back problems you might even injure your back. If I'm being completely honest, it's probably the least comfortable chair I've ever owned.P.S. I apologize to the seller if the tone of my review seems overly trenchant or mean-spirited; I was trying to balance courtesy and frankness and I hope I didn't overshoot the mark.