I just finished binge-watching the series and here is what I felt. It's a great storyline but at some points, you will find it too predictable (even in the end). While the theme is completely fresh but I want to warn you it is just like any other classic kids' movie.
It is kind of slow. Not so mesmerizing. And, to be true, the end of the movie would not bring you to the edge of your seat (something I expect from such series). So I give it 5 stars for children. But 3 stars for my fellow adult audiences out there.