I converted a small closet in our living room area into a china closet.  It had existing shelving above, but I needed lower shelving.  Because this cart folds up, I was able to slide it into the closet and then unfold it and it fits perfectly.  Was exactly what I needed.

Pros: This is sturdy, and since it folds up, you can put it in a constricted area and then unfold it.  
Cons: No cons.