1st Chair seat has one screw hole instead of 4.  This one doesn't even match up with any of the holes in the seat frame. 
The other chair had also pine hole in the seat,  and NONE in the frame for screws. 
The posts that go from rear legs to front legs to brace and balance don't have holes that match up with the front legs. Components don't fit flush in some places so there are gaps between them and for fear of splitting the wood by over tightening screws,  they had to be left gapped.  I  gave only 2 stars and that's because without these problems,  the wood is heavy and sturdy.  But the fabrication of matching components is very shoddy. You have to make serious adjustments with these.