Love the new tile marking UI! New music is great, although the downtime between tracks feels like it last way too long.
Not sure how I feel about the difficulty increase. On the one hand, I feel like I had pretty much solved the previous version, so more difficulty is good. On the other hand, the game feels a tad more inscrutable now, like there are fewer paths to victory. The tighter HP and fewer initially revealed tiles makes the early to mid game feel a lot more cramped in general. I need to play more to process my thoughts.