There is a line from the inside corner to the outside corner of the wall, you can see it but it never offends, it's fine. We used only one piece, the sink top is 2'8" by 5'10", it goes to the right 5'6", angles right again 1'6". Only that one seam. It just doesn't bother me at all.
I think it 's more noticeable in these pictures than real life. Or maybe the dirty dishes just cover it up.