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.
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
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.
Been using the chair for about 2 months now and i'm happy with it so far. Some things I don't like about the chair is the material for the cushion which felt rough if you are wearing a short and the back support is kind of loose because you can shake it with your hand and feels unsteady.
This chair is worth it's price and functions well. I expect it to last for at least 2 years based on regular daily use. I wish there was better adjustment for tilting back. The controls are also a little bit low to reach when seated back in the chair. The materials could have been finished a little better on the arms rests and back.