I like this so much. $99 is a drop in the bucket for most weddings, it's a big market, and this seems so much less intrusive than the traditional "Aunt Ethel with a camcorder" approach.
One thing that stuck out to me was that the guy in the purple tie was a little out of frame. That would have made my wife object to this idea for fear that everyone would end up with their heads cut off. FWIW, I'd maybe move that part to the end or cut it altogether.
Like the music, too.