Bought these for grandsons to help their Mom organize their room.  They all loved them.  The boys each chose 2 colors of bins and had fun organizing themselves.  

Pros: I assembled these (Grandma) with my grandsons who are 3 1/2 and 5 and we did it easily!
Cons: If these are climbed on they might tip or break, somewhat wobbly.  The legs might be wider to offset this.