Just finished the game, and I absolutely love it. I'm not the biggest fan of the true ending but that's more because it made me sad lol. When I can I'll definitely buy the soundtrack.
Spoilers:
I kind of wish there was a secret ending if you chose to play with IT again that would let you stay with IT after you've freed everyone else, or a reveal that the true ending had also been one of the dreams you'd had. I genuinely felt so guilty and upset watching IT die, especially because I have to keep selecting the option to abandon IT. Other than that it's definitely my favourite game out of everything I've played this year.