Assembly was a little challenging especially fitting the back in place but the chair is very comfortable. An important feature (for me) is that the top of the back is wide enough for my cat to sit there easily so she has to be pleased as well as me.
It's comfortable and not too difficult to put together. It doesn't lean back as easily as I would like. But the leather is comfortable and I like the arm rests.
I needed an extra pairs of hands (and slightly better eyes) to put the back on the chair but it was easier to assemble than I feared it might be. Only needed the allen wrench (included).
loved it until today heard a loud cracking noise and the chair is now tiltedand broke. used it for 5 days. I bought 2 of these and was hoping that it would be a good chair for my back. Disappointed. Unless it is just a bad one.