Magical Girl Lyrical Nanoha is a fairly solid mahou shoujo anime - but it does have it's flaws.

Pacing 6-10: Frankly, it's a mixed bag. The pacing in the first half with the Jewel Seeds felt rushed to get to the more interesting second half, which I preferred. However, that same rushed pacing in the later half felt like it worked against the show. The final confrontation against Precia had that feeling of rushed conclusion.

Visual 7-10: I think there's a lot of really impressive and experimental animation. For example, in the first episode where Nanoha is running in the dark. That scene felt very vivid and dynamic, almost as if we were running alongside her. On the other hand, I felt that some character designs felt lacking like Arf. The final castle also felt bland and copy paste.

Writing 4-10: Overall, the story did not really impress me. This ties back into the pacing feeling rushed, we were more or less rushed into conflicts without sufficient context. Sometimes world building moments would be included afterwards. Like we only get information about Al-Hazard in the final episode. The combat system also felt a bit lacking and unrefined, fights felt more or less like a free for all. Nanoha in particular suffers from this, we just see her performing magic feats without any training whatsoever. You could chalk it up as her being talented, but its also possible to chalk it up as lazy writing.

Emotional Impact 9/10: I think Nanoha's strength lies in it's characters, not its plot. Nanoha resolving herself after failure with the Jewel Seed in episode 3, Fate finally becoming her own person, side characters suffering because they notice something is bother Nanoha but cannot help her in any way. These are all really strong points of Nanoha's characters; they're relatable and immersive for us as the audience.

Soundtrack: 8/10: The opening theme by Mizuki Nana is very impressive and catchy to hook you in. The ending theme by Yukari Tamura is very relaxing and fits Nanoha as a character. Fate has a one time special theme which was very epic and helped hype up the experience at the end.

I recommend this show if you want a decent Mahou Shoujo anime with a great cast. I do not recommend this show as a starting point for the genre.