The  backrest bracket was poorly contoured and fitted with the rest of the assembly, mind you for approximately 45 $ that is okay, but I nearly returned it or went backless because the threads wanted to strip out..  I actually had to do a little ad hoc repair on the fastener and baby the bolt in the whole way; this was more straight forward because I'm a machinist.  The rest of the fitment and quality was at par, or better, for the price.

Pros: affordable, approachable, place where chrome accent wraps around on both pieces not noticeable when assembled
Cons: the bracket, poorer quality fasteners - for a craft room, not a deal breaker by any means