Very bad design. Assembling is very complicated, and the material is cheap and fragile.
Most importantly, I ordered a white one, but they sent me a brown one with the box labelling as white. The inner side of the bookcase is white so I didn’t realise it was a wrong item until it is partly assembled. Wayfair refused to exchange a correct item for me because I had it partly assembled already, not even an apology was made. Very poor experience!