I haven't gotten to play with it yet, but I plan on it.
I'm in the middle of pairing down my game to something simple enough for me to build in a month or two. It may not sell much but I want to get all the non-game stuff ironed out. Menus, pausing, leaderboards, storage, random controller configurations, random game tag use, multiplayer mode, network play, etc ... That is the stuff that is always in my way.