The shelves look nice on the wall and they were easy to assemble.  
However, they were almost impossible to mount on the wall.  Lining everything up was  not at all easy.  Hitting the wall studs was a disaster.  When they finally got on the wall one of the shelves was still not level.  If I had it do over, I would purchase several shelves that are not attached.  Such shelves would be tremendously easier to mount on the wall.