This is my first brew with my Mr Beer system, and I'm very impressed! I fermented it for two weeks, had it in bottles for five weeks, and chilled it for two days before opening... It's extremely dark (basically black), and has great flavor. The only downside is that it's a bit lacking in body, which some other Mr Beer users have suggested solving by using "steeping grains". It's a pretty easy thing to do, and should greatly improve the quality... I'll be doing that on the next batch, but I wanted to try one "as-is" so I'd have a baseline.
Overall, highly recommended! Dark beers are my favorite, and this one is great!