Mushi-shi is what you would expect from a legend of the Japanese animation world it is visually amazing and each episode could stand on its own, although I do expect more from were it left off.
The opening theme track sets the series off beautifully and the sound through out is something special in itself.
The story is something you like or don't but if you like it then you'll love this. It is not over complicated and is not flashy, the story is possibly it's only week point of the series most will find it slow moving compared to other shows in the genre, I do recommend watching this series.