My 9 year old had the standard bunk beds...one on top of the other and unfortunately a huge temptation for him to jump off of along with his friends.  I read the danger in that and decided a trundle bed was the way to go instead. I also needed a lot of storage for his things as well as a large nightstand. This bed included all of that PLUS the pill out bed underneath for friends to stay over and NO ONE gets hurt! Yay! There is also a hidden storage area underneath the bed behind where the trundle pulls out. It's everything we wanted!

Pros: Very easy to assemble, completely user friendly both in instructions and all of the uses you have with it (bed, storage, trundle, lots of space in the side headboard)
Cons: There aren't any! I'd tell anyone looking for bunk beds to put that idea away and get this instead!