The assembly was very easy and I like the overall style. They work fine for my kitchen and I would be happy had I spent about $100 less per chair. 
I have several issues with them though. The nailhead looks very cheap (it's a metal thread of nailhead rather than individual nailheads) and is uneven, the seats are very hard, there are lose fabric ends poking out in a few spots, and some of the hardware was missing. These are definitely not $399 chairs, nor are they even worth the discounted price of ~$230.