I would have given this 4 stars, but the assembly process was pretty horrendous.  You definitely need 2 people, if not 3, to put it together in a timely manner.  The instructions are small and in black and white, making it difficult to follow steps.  When you insert screws into the styrofoam pieces, you actually push them through the styrofoam: I was nervous about this step because I thought it would make sense for holes to be pre-cut or for the instructions to indicate where to actually place the screws.  And during the final steps, getting the exterior pieces screwed in was a nightmare.  That being said, it's a sturdy piece.  And the difficulty in assembling the exterior pieces comes from the fact that it's VERY air tight so bugs don't get in and smells don't seep out.  Had the instructions been more straight forward, I would rate it a 5 so far.  Just be prepared to be frustrated during assembly and prepare to spend several hours putting it together.