This seems to be a very decent bed, especially considering the price.  The bed came in two boxes, and took a couple hours to assemble, with a 2 and 4 year old "helping."  The instructions are easily understood, and each piece of the bed is clearly marked with a letter to match the instructions.  The bed is definitely for twin XL mattresses, so be careful if you're looking for a regular twin mattress.  My son loves it, and it seems quite sturdy.  The construction seems solid.  I'm happy with the purchase, and would buy another one if we had the need for another bunk bed.