Playing the game now.  The game is good...  Not revolutionary, but evolutionary.  It is the equivalent of the original Rainbow Six: Vegas with a couple of service packs applied.

They have addressed many issues in our Rainbow Six Vegas 2 Wishlist, and expanded online play in ways that make it much better than it's predecessor.

If you are a fan of the first, or love tactical realistic shooters, buy the game now (or pre-order it, etc.).  It is definitely worth the money.

The full review will be up shortly.  There aren't many people playing online right now, so that is holding it up.