I've written a few reviews on MAL but this is the first one I'll write for a Hentai. Just so this is perfectly clear, I don't treat a Hentai series any different to any other genre. Another thing I want to mention is that I've watched everything there is on the Nanoha canon and I'm totally aware that everything began with an eroge that later would turn into this anime and eventually Nanoha was fully reborn as a magical badass. In any case, I went into this with an open mind and expecting something completely different to the Nanoha-verse (which it is). Animation: 1) it'swhat you'd expect from shows back in 2002
2) it lacks visual accuracy in some scenes (ex: if a character is driving, depending on the angle, it might have the seatbelt or not).
3) the animation and the dialog aren't always in sync

Sound:
1) sountrack is pleasant
2) the voice acting might actually be the worst team performance I've ever experienced

Story and characters:
1) The 1st episode really surprised me when it came to the sex scene because I thought based on the MAL description, that this would be another harem situation
2) I don't like underage, rapey, sexist stuff.
3) the last 2 episodes, there's an actual plot but it was boring and uninteresting. I also think that the last episode took too long

Overall and because it's not the "usual stuff that you see in every hentai clip on the internet", it's a 6/10 for me.