This series, I must say, rather surprised me. I downloaded it expecting it to be a mediocre anime only to find the first episode quaint with my tastes. I nice dark feel looms in the first episode, giving you the perfect essence of the nature of the butler and his master.
Not to mention the credit music was awsome. It was an American Alt Rock song actually sung in perfect English. As soon as I get a chance, I'm downloading the song.
Still not seen it, but it's something I was looking forward to (as kurogane no linebarrel was T-T). *Downloads*
Edit: It was really good, the mood is grim and dark. I love it.
Totally agreed btw, the credits music is great (I must admit I loved the background music of that Ep.1 too, fits the atmosphere well.)