While TP The Class Next Door isn't the absolute worst game here, I remember a VN with stick figures, for example, and there is even one with characters that look like dots, it has no characteristics that make a halfway decent VN.
1) Story: There is no apparent story. No conflict. Nothing worthwhile or interesting ever happens.
2) Character development: None. Other than the daughter, though she barely has any personality, all other characters act exactly the same as each other, with the same dialog. If you swapped their models and names with each other, nobody would notice. Also, each character seems the same as the first day you see them.
3) Dialog: Honestly, the worst dialog I have ever seen in a VN. I am immune to bad English, honestly it doesn't bother me. If the dialog is somewhat interesting, I just read along and can tell what the dev is trying to say. But, this game has the most pointless inane dialog I have ever seen out of hundreds of games here.
4) Sexy scenes: I mostly play for story and character development, with sex scenes a nice bonus. Lacking 1, 2, and 3, above, some VNs make up for a weak story and poor character development, by just throwing lots of sexy content in their VN to keep some players interested. Here there is none. Unless you count dream sequences, which I do not. If it doesn't happen in the actual story, it doesn't happen. Dream sequences are an insult to the player.
5) Models/Renders. Ok, they are not terrible, but they are somewhat grainy at times, and look like something that was low quality about 3 or 4 years ago. They would not look out of place compared to what we all saw a few DAZ generations ago, but do not compare to any of the better developed games here. Overall, the renders are very low effort. You can tell the dev really does not care. The lighting is completely flat, and none of the characters have realistic or high quality skin textures. The backgrounds are also very basic and bland, and you have seen them in many VNs already. The best I can say is the students and most of the teachers are cute, but that the models are seriously dated.
6) Developer attitude: Haha. Some middle-of-the road games can carry on because the dev seems a cool person, and likes to interact with the community. The fans see it as a learning experience for the dev and want him to succeed, and though such a dev's game is pretty rough, it still has some quirky appeal. But we get the opposite here. The dev is prickly, is antagonistic to his fans, including his subscribers which is surprising to say the least, has been thread banned here at times for manipulating reviews and comments, and seems an all around unpleasant person, at least publicly. I won't even get into the politics he keeps interjecting into his VN, since you all know what I mean. It is so ridiculous and transparent, I have to laugh whenever it happens. I guess if you want to know what a hard-core MAGA game developer looks like, look at 9th Crux. Dressing all your characters in blue lives matter pajamas? Wow.
So, what am I missing for those that actually like this game? For the first few updates, while the setup is completely derivative and cookie-cutter, it looked like it might actually be a decent copy of better VNs. But nothing ever happens, and the bad dialog and lack of story or character development, just becomes more and more obvious after every update. By update 3 or 4, everything has just stagnated.
It looked like it might have potential by the first few updates, but the dev basically has given up on making the VN even half-way decent. I would call TP The Class Next Door what happens when a dev truly does not care, at all.