Doesn't fit the rack
Your review: This seems like a good idea but it is sized such that if you follow the directions and put the rack uprights on the inside of the base corners, the legs are too close together for the shelf supports to fit. If you move the shelf up a ways you can get the brackets to fit but then the legs are pinched inward dramatically. If you put the uprights on the outside of the base the holes don't line up properly. So... I'm not sure who is using this unit successfully but if they are they surely aren't putting a shelf at the bottom.
Pros: Cool idea, seems like it would make a sturdier base than using a shelf at the bottom.
Cons: Sized badly so it doesn't actually work.