Very sturdy piece: pleased with this purchase, especially for the price point since our daughter really really really wanted a Berg system for 4 times as much. Now she loves this. My husband and I assembled it in one afternoon/evening. If you take your time and follow the instructions it works as described. One thing I didn't realize when buying is that the bottom step does NOT have accessible storage underneath. But the three steps that do and the two drawers underneath held my daughter's Barbies, legos, art supplies and stuffed animals with room to spare. We lined underneath the bottom bunk with a rope light and she really thinks she's in tween heaven now. 

Pros: good value, reasonable assembly, ample storage, sturdy construction.
Cons: wish the bottom step made use of storage space.