Tastes like the Guinness bundt I had on St. Patrick's Day, with a malty bitter chocolate and sweetish cake flavor. It's not a bad beer, but let's just say it's much better as a cake.
An interesting flavor, like burnt toffee candy, sabotaged for me by really aggressive hopping. Prickly, pithy bitterness is dominant on the finish. Probably would float someone's boat, but not mine.