This is my kids second bunk bed.  When all put together, the bed is sturdy and safe as our other bunk bed that cost more than double this price.  The quality of the build and finish is good.  It would be nice to have a thicker side railing (side railing is less than 1 inch thick) on the bottom bed for extra strength since that is where kids/adults tend to stand on, but it seems to be otherwise engineered nicely.  I give it 4 stars due to the time it takes to assemble the bed.  It took me almost 4 hours, but I assembled it by myself.  A second person would probably cut that time down by an hour or so.  It wasn't hard, but just time consuming. Also, I bought a 9 inch high mattress for the trundle, but it did not really fit.  It gets caught up on the wooded support bar under the slats.  An 8 or 8.5 inch mattress would fit better.