Unfortunately for me i only have 100MS points left in my account...So don't think i'll be buying this character until the next time i get around to getting a points card...
Still for just under 1000MS total for the game and DLC character this game is great value, and i recommend checking it out. You can read a brief write up a did about the game here, as well as a review on NTSC-UK.
Check out the DLC on Xbox.com.
Edit: Also just noticed SNKPlaymore has updated their game blog regarding this, have a look to see a couple of pictures of this character in action.