It`s nice to see, and it looks well suited for a small case. I much prefer firms build on smaller pcbs if it`s possible and not feel the need to make a full size for the sake of it.
It`s also true that up to this point these little slots have been somewhat of a waste of space on ur mobo. Although u can use network cards, and of course soundcards in them, not many people re-buy these items with network onboard being fairly good and rumors of onboard sound getting better.
Of course mobo manufs have included enhancement cards for these slots, meh.