In my opinion, Little Witch Academia is a magical girl show without any disappointments. Even the smallest of scenes avoid falling into disappointing cliche results. They made this entire show optimistic and positive and I think it is really powerful with the lessons they deliver.
During pretty much every episode, I felt like crying near the end. Everything really comes together in each episode and what seems like it would be a bad episode ends up being something special that imparts a lesson on the viewer. Even the main character and her development of her power deliberately teaches the viewer through the lessons/magic words that she learns.
I would say that not one of the episodes would count as filler, but that isn't too surprising considering this was a show made without source material besides the movies. Each of the people Akko meets is charming and refreshing in their own way. Every character that Akko grows to care about is impressive and important in Akko's adventure. Even the character who didn't get enough to do (and the creator themselves said they wish more had been done with her) Jasminka, left a strong impression on me as she seemed capable in just about every situation she found herself in despite looking like someone who isn't paying much attention to anything.
For the mood of the show, much of the opening and ending themes are perfect. The first opening felt really cheesy at first, but it ended up being something that opened my heart to the show's pure optimism. The first ending is one of my favorites in anime... The second opening is really cliche in animations, but it is still such a good song and it really was important in marking the tone shift that happened.
Speaking of the second part of the show, I think that they came up with the best possible plot twists and directions for things to go. I had no suspicion that the situation would be the way that it was, but it also fleshed out the characters and plot progression very well and made the show feel undeniably perfect.
It is amazing that this show also manages to feel relevant politically, even showing us a powerful solution to problems like fascism.
And the characters who were the most powerful (Diana and Andrew) were depicted in a realistic way that I was very happy about. In fact, all of the characters in Little Witch Academia felt very real to me, which is part of why every episode makes me cry a bit and why Akko's small successes are so rewarding.
Overall, this is a definite 10/10, maybe even 11/10!
Watch this show if you want an anime that is meaningful and educational and helps you mature.
