This product is truly all its desinged to be- easy to assemble; flexible in configurations (you can stack multiple uinits on top of each others; horizontaly according to your needs. It has adjusteable legs for uneven surfaces. And most improtant the shelves are very sturdy, lie flat and can easily hold up to 3 pairs of shoes (mens for me) on each shelf.
Having moved from a house to an apartment this product made the loss of space much easier to manage.
I cannot find anything negative.

Pros: Strong; Adjustable configuration; Easy to assemble excellent product
Cons: None