I recently purchased a headboard and needed something to attach it to.  This was my solution, although it took some maneuvering to align the headboard.  It gives good support to my mattress, but I do wish it came with some kind of pad for the top of it, instead of the thin cover skirt provided.   The mattress slides too easily without some heavier non-slippery material underneath it.  

Pros: Sturdy solution to use instead of a bed frame
Cons: Cover skirt needs to be of better quality