Grand Academy of Villains is a game I first played years ago. I found the writing funny and the class interesting, but I wasn't satisfied with the ending because I found it abrupt.
Now, after playing through essentially every Choicescript game, I realize how high-quality the first Grand Academy game is in general, with lots of valid choices and good writing. I still think the ending has some issues (with some stat checks that are too high, imo), but overall it's one of the better games.
This game builds on that, but in a way some people disliked. Grand Academy 1 had very different endings depending on your choices, but this game funnels all of those towards one 'main' choice.
I know several people were unhappy with this choice, but I saw the complaints before I played, and wasn't surprised or, really, disappointed, since this game is all about multiverses and changes in reality.
Anyway, this game was fun for me. There is a big competition all year between houses (Thriller, Horror, Sci-fi and Fantasy), overseen by an outside group. In addition, a powerful new student with destiny enters the school.
The writing in this series is exceptionally funny (if you're into parodies of both academia and writing tropes), and stats are generally clear. I do think, though, that the game suffers a bit from stat checks that become progressively more difficult, meaning that the chance of you failing during the finale is high.
Another small problem is that, due to numerous options, each option gets less time. At one point I had a choice to impress people with my grades despite never going to class and not having any grades (i.e. my grades were listed as 'unknown'). I had plenty of time to spend with my 'nemesis' (this game has both normal romances and nemesis similar to romance but with hatred, kind of like that homestuck thing), and my current romance. But everything else seemed fairly stretched or thin. Again, though, this was only due to the large variability in the game.
Some people have said in reviews that 'your choices don't matter' which isn't really true, the writing is extremely variable. However, there's an art to making it clear in writing that your choices aren't important, and I think that wasn't communicated properly here.
Overall, very glad to have played the series, and would rank it in the top 20 at least.