This unit is very good and you can fit a lot more than 20 shoes in it. The back of the unit has some corner pieces I have not seen in any other cabinets I got before which holds it together tightly.
Only problems I had were no instructions came out in the box. I called Wayfair and they sent me electronic version right away. I was also missing one of the bolts, again this was sent out to me. It is not very hard to put together and the doors are aligned easily.