This chair is easy to assemble. It's comfortable to sit in for long periods and I feel it has adequate lumber support for my needs. I'm 5'8" and have it on the lowest setting to sit at my desk which 29.5" tall (also purchased at Wayfair). I bought it on sale and am delighted with the price. Not sure if I would pay full price for it.
The wheels all work and glide smoothly on my hardwood floor.