Good, but not focused enough. It kind of meanders around the main point for a long time. You want to find out more about the characters and don't until very near the end, which I suppose make you watch it so credit has to be given
Good, but nearly too cheery for some of the subject matter. The characters are all designed very well. As a personal preference I would have liked Darker than Black to use more black. It is not a cheery anime and yet the colours are quite vivid.
The voices are well cast and are performed well. I would recommend the dub for this anime as, unless you are fluent in japanese, you will have to be quite a fast reader to keep up with some of the dialogue. The music sets the tone and mode with ease without becoming a distraction, not surprising considering who was involved in making it.
Some developed well, others waited too long. However, as has already been mentioned, this makes you watch it. Perhaps a coup;e more characters could have been fleshed out sooner
Good but could have been great