Some hints to prevent a re-do: Be sure the release handle is positioned on the side where it can be reached from a sitting position; When attaching the base to the underside of the seat, turn the seat over on a soft surface (we used the bed) with the base facing up.  It is easier to tighten the screws working from the top down than trying to find the holes from the underside..  After a re-do on the first stool, the second was a snap....took about ten minutes.  Won't be using the stools for a few months, but they are exactly as pictured and look great.

Pros: Beautiful, and appear to be well made.  
Cons: It would be very helpful if the above hints were included with the directions