Thanks for the feedback! Yea, I've begun to notice that progression that "feels good" is 90% of the time gonna be a qualitative one vs. a quantitative one regardless of how effective such upgrades are overall; e.g. "Your attacks freeze/knockback/stun enemies" vs "Your attacks do +20% damage". So I might focus more on the qualitative side when I continue developing! I'm glad you liked the game, thanks for checking it out!