Your review: Made of very sturdy hard plastic. I was able to climb atop, and it held my weight (210 lbs) confidently.
Pros: Very strong, nice appearance, and relatively light weight.
Cons: A little difficult to assemble because the shelves and support posts fit together very snugly. A rubber mallet is definitely needed. Also, I recommend that you install the casters last in order to have enough hammering space to use mallet.