-It can be a decent anime to watch If you are bored or you want a short anime to watch for fun
-It has a good premise with some interesting misteries
-Some decent action scenes
-The characters are ok, nothing memorable but ok
Bad things:
-A lot of things remain unexplained to the viewer at the end of the series
-We dont see who is in charge in the No.6 city. Who makes the decisions ? Who rules the city ? We only see a sort of political police and some scientists who make some experiments
-The animation is really poor in some frames
-Some misteries dont make sense and their explanation doesnt fit
-A bit of useless fanservice
