Poor quality control. First one I ordered, had an exposed nail jutting right through one of the shelves, a broken leg that was badly glued back together, missing chunk of laminate off one of the top corners, lots of wood filler globed into a couple of the shelves. 

I contacted Wayfair and they shipped me out a replacement that arrived a few days later. Have to hand it to Wayfair customer support!
Wayfair