The only difficulty I had putting the chair together was the instructions was mostly a diagram and the diagram was a little hard to decipher.  Otherwise, it was pretty easy to put together,; it would had been easier if the pieces were marked.  Just be certain not to tighten all the  screws/bolts until it is all done, makes it easier to fit all the pieces together.

We bought the chair with the casters.  I looks beautiful and is very comfortable!