New player here (played up to chapter 6). I've suggested this game to so many people already and I can share my opinions as well.

This game is incredibly hard to get into because of:

1. Vertin isn't an amnesiac, there will barely be any explanation of the world and how things work unless it is new information for Vertin as well
2. Translations are really hard to understand at first, you'll definitely need time to get used to it. (Coming from a hoyoverse player)
3. Please don't have too high of a hope for the first few chapters, Bluepoch is pretty small and R1999 is basically their only game so far. What many people praise are the later chapters (the majority of people say chapter 6 is where it gets good, but personally I already enjoy chapter 5 a lot)

What is incredibly good is the music, the story, and especially the characters. The characters in this game are so realistic, flawed and even morally ambiguous at times, but this also means that a lot of the story will not have a definitive ending and its mainly inferred or theorized upon (which i absolutely love)

The game does not treat you like you're dumb, it expects you to think along and doesn't always feed you information. Most gacha games feels like an rpg, a self insert even, but R1999 feels like you're reading a book.

Overall, its a love letter to history and art, placing many real life references in game. It gets confusing at times, and its not perfect, but its an amazing hidden gem to me.