Well, I cannot say too much about the animation, it is like they were in a rush when they made the design. That is the only bad one thing that I see.
Now, the good part, it is fun, cool and cute.
Fun: the experiences that Monochrome face.
Cool: How Monochrome confronts with those.
Cute: Her voice and how she is. The ending theme's design is a good form to use the CGI animation, so cute.