Sturdy bed, relatively simple to assemble, but takes some time, roughly 4 hours. Will need a second hand to lift the twin on top of the full. We were missing 2 bolts and 2 center support legs, nothing critical, the kids slept on the beds without issue and I expect those parts will arrive quickly. 

Biggest complaint - getting the stairs aligned and attached to the bed was very difficult. We put together 2 of these beds, and could not get the bottom 3 bolts to meet up on either set. The stairs are attached securely enough that we are not concerned for now, will likely reinforce with a screw or two.