Got mine today. Assembly was a breeze. Push the 5 wheels on, put the cylinder on the base, set the chair on the cylinder, profit. My only complaint, and it's a big one: It blows my mind that companies continue to make such rock hard arm rests. We go through all these lengths to cushion our butts and support our backs, and seem to completely ignore arm comfort. Also, for $400++, the arm rests should have more than 2 adjustments. Just my opinion. Overall, you can tell that it's a quality chair. I like the way it supports my back, but sitting here for an hour my non mouse arm is not comfortable. I'll be looking into some kind of wrap for the arm rests. I'm pleased with the mesh on the seat and back. Also at 5'9, the chair is about 1/2" too tall when barefoot. I'd like my legs to come down a little more. In shoes, this isn't an issue. Obviously other 5'9 people will have different body types.