I purchased for home use. Easy to put together. Did have the 800 number in the instructions. Back is fine levers are fine. Don't think I would sit in it for 8 hours but 6 is fine. Overall contented with my purchase.
Overall the chair is good. Good back support easy assembly. Feels a LITTLE cheap the back wiggles slightly from side to side. Maybe I need to adjust something. Since you sit in it that wiggle doesn't bother ya. Happy with it and saves my back from sitting in a dining room chair for the last 5 months.
My wife has the Aeron and while this doesn't compare to that chair I'm very pleased. The adjustability of this chair puts it above many others in this price range. The mesh back is cool and comfortable. The seat is not as comfortable as some others but the ability to get it set just how you want it makes up for that. I've only been using it for a week or so but I would definitely buy it again.
I read an ariticle that provided ergonomic desk chair reviews by physical therapists. This chair was reccommended for persons with short legs. In one week of use my hip pains have diminished my neck pain is gone and my perpetually sore mouse wrist is drastically better. It looks great feels great and is simple to assemble. I highly recommend
It was easy to put together. Controls are sturdy. East to make adjustments. Very comfortable. For the money it is a good price. Not too heavy. Bought it since now i will be working from home until mid January 2021