It's delicious. If you're really into stouts, this is a must try as well:
Samuel Smith's Oatmeal Stout - Samuel Smith Old Brewery (Tadcaster) - Tadcaster, North Yorkshire, United Kingdom (England) - BeerAdvocate
A friend of mine who brews just made a chocolate oatmeal milk stout. It's one of the most delicious beers I've ever drank.