Doesn't feel rewarding for me :
- I got my highest tier just by being there at the right time.
- I never got to see tier 1-28-ish.
- Offline production skips the early grind, which feels unfair to newer players.
Rather than reset at midnight UTC I would prefer a reset when the new highest tier is reached: say it's 29, boom back to tier 1 with the new highest being 30. No offline progress (at least for points).
Right now the focus should be on optimization but, food for thought: it would be fun to buy common very pricy mega-generators (that would also reset like the rest). In general anything to raise the amount of player interaction / strategy without losing the relaxed, "watch paint dry" mood.