I personally enjoyed Leo's tapes. I hate "extreme" marketing, but his videos were very well made and showcased some pretty neat moves. Moreover, the tapes approach the same technique multiple times from multiple angels, so you get a good visual feel for what he's doing.
My only fault with his series is that he presents no drills and little in the way of finishing holds. Other than that, the ex-jj series is a good set of tapes that show unorthodox methods of transitioning from position to position. I definately reccomend them.