I got 2 chairs and everything was pre-drilled EXCEPT the seat of the chair so when you went to screw in the screw it doesn't go flush so leaves it loose.  Tried the next chair and it was the same exact way.  Everything was pre-drilled but those 4 screws on the chair seat so not able to stand on the biggest part of the ladder.

Pros: good looking 
Cons: not easy to put together on the seat part of ladder