The stool was not as advertised. There was no hydraulic cylinder to adjust the height. There was a screw mechanism to adjust the height and to provide swivel. The metal was not powder coated. It was just painted and some of the grooves are not fully black.
The assembly instructions were poor.
The pieces did not fit together accurately. I found if I loosely assembled the stool as instructed ensuring that all bolts were quite loose, I could get the stool assembled. Then I tightened the bolts in reverse order.
Each part was strongly constructed and once assembled held my 370 lbs without a problem. The stool was comfortable and I expect it to last the 2 year warranty period.
I am concerned that the paint may scratch and rust.