I bought these for my boys. They have gone through several bunk beds that would not last them a full year. This has been the best bunk beds with full support and at a GREAT price. I recommend them to anyone with active kids.
Note: depending on your situation, it may actually be a better idea to get the instead of the Twin-over-Full one. The Full/Full version features both top and bottom beds in full size and actually (at the time of this writing) costs less than the Twin/Full version.