Initially,  I had an issue with one of the two sets I ordered (one piece in the set was significantly damaged) but the items were replaced without any hassle. 
They were relatively straightforward to assemble, although there were some brackets and screws supplied which didn't have any guide holes to determine where they should go.
However, once built, they do look really nice. 
If they are going to be used regularly or for long periods, I would suggest some kind of padding / cushioning should be placed in front of the back slats for additional comfort.