Just finished this series. Overall it is pretty good and worth watching at least once. The storyline is a tad bit complicated, especially if you are not a scientist, but a very interesting one. Unfortunately, it feels like it was written by and for quantum scientists. The storyline could have benefitted from having the concepts reinforced through reptition rather than just thrown in randomly.
The music and opening theme is some of the best I have heard so far. The fight scenes and graphics are amazing as well. Probably worth seeing again at some future point.