Being a large fan of Higurashi, I was really excited for Umineko when I heard it was coming out as an anime. I haven't read the visual novels (I've only got a pathetic understanding of Japanese), but I got the gist of it from Wikipedia. So far, I have to say I'm not disapointed. I figured on animation I couldn't expect much from Studio DEEN, but it's better than Tayutama at least. I like how Kinzo sounds like a twisted old man, and though Maria's whining grates against me sometimes, she's elsewise well-voiced, in my opinion. Kanon sounds dull and mechanical, and Battler and George sound somewhat unique, but all the other voices seem to be rather similar to me. Still, the first episode got me interested in the story, and the second episode got me hooked on watching it 'till the end.
Though I do have to agree with Queen Clubs, Battler's "shock" wasn't really as convincing as Jessica's, though I'm interested to see how George will be next episode.