Got this headboard in king size for spare bedroom.  It will function perfectly for this use.  However it is not sturdy enough to lean against if sitting up in the bed., nor will it withstand kids jumping on the bed.  We attached it to the wall, problems solved!  Smaller sizes may be sturdier and function well when attached to bed frame.

Pros: Easy assembly, nice color.
Cons: King size not sturdy enough.