The pros:
*Difficult-to-find size. It fits file boxes and larger baskets well (most cube bookcases aren't deep enough).
*Love the style. I put three in a row. Also love that it can be vertical or horizontal orientation. They look good from a distance.
* Thicker/sturdier material than other cube bookcases I've had in the past. 
Cons:
* Very poor quality control. Every. single. piece. came with damaged edges (and I purchased three of these, so it wasn't just one bad apple). Other spots have nicks/discolorations. They look good from far away, but used/worn up close.
* Assembly was tricky - my very strong husband got sore muscles screwing all the bolts in. 
Conclusion:
They were worth it for me because they were inexpensive and it's very hard to find a similar size. But I would greatly prefer a higher quality option (even if it cost more as a result).