The anime overall is incredible! The art style is fun and attractive, but also does very well portraying dark scenes and gloomy settings. It really made me want to imagine the larger parts of what you don't get to see from the characters perspective! :D
The music and sound are great! I loved the Japanese voice actors, I can't say anything for the English version as there is none, but I'd highly recommend the Japanese version even if there was one. The songs have loads of feeling in them, and really bring in the extra step in making the visuals more enhanced!
The characters have great depth, and are really made lovable and relatable throughout the story. Thy develop in a semi-realistic manner, and really get your emotions moving alongside them. Each character makes an impact, no matter how small a part they play, and they seem to bring a different view to things making them more interesting to encounter.
One thing which I absolutely LOVE with this anime, is that there are no filler episodes! This means that you don't have to skip pointless episodes that have nothing to do with anything, but they are all incredibly interesting and really help you flow from episode to episode. Although there isn't any filler, there is technically one episode which recaps all the past ones, but that's only around episode 12, and only happens once.
Overall, I honestly can't find much fault in this anime at all, at least not without analyzing it from all points as if I were to look for things I can scrutinize. I don't watch animes to see whats bad with them, I watch them to enjoy them, so any minor flaws that I might have missed can probably be found in someone else's review :P
