I was really excited about this shelf. The holes for the wall were uneven on the shelf, so when I drilled the second row of holes to match the top, they didn't line up. The shelves are crooked and uneven because the frame is crooked and uneven. I chose the more expensive version of this shelf because I thought it would be better quality. The shelves are made from a wood cheaper than particleboard. They didn't even come with holes to make sure they are lined up evenly when you screw them on the frame. Unfortunately it was so frustrating to screw into the wall and now I have 6 giant holes from the anchors that I have to keep this shelf. Very disappointed in this product and I am a teacher with limited funds and am very upset that I wasted my money on this.