Quality control was certainly not performed on the one I received. 
1. The screws were small for the anchors.
2. The holes were not positioned properly i.e. you couldn’t use the existing holes, you had to make new ones for the two of shelves.
Since, this unit was supposed to be mounted in my baby’s room, in the conditions i just listed it makes this product so unsafe for such environment. Future buyers- BE AWARE!!