(spoilers, anyone who's playing the game shouldn't read this if they haven't beaten the game)
while I did mostly enjoy this game, I still feel that the endings left quite a few things about the setting and story unanswered to the point where it was less mysterious and more unsatisfying (who was Vasilis talking to in the beginning? what's actually wrong with Mary? why did time stop magic make sick people feel better and dead spirits? who was the person in the notes talking about the spirits? what was Tetra trying to do? what's the deal with Tetra's weird eye stuff in his boss battle?) I also felt that some elements like Vasilis' split personality in the secret ending or the answer to why time stopped in the true ending came out of nowhere.
maybe this is all just user error; a missed sidequest or bit of party talk, insufficient reading up on the dev's other projects, not reading between the lines enough, or just overthinking the details. I'm not expecting the dev to go out of their way to answer all of these questions, either. still, that was the experience I had.
again, I did mostly like this game; the visuals, the music, and the character writing were great, and the combat was surprisingly involved despite its apparent simplicity. would recommend trying it out.