I loved the polish and ui on this. Beautiful art, cool screen effects and very clear game flow in terms of where to click when. I think you've got enough feedback on the pacing so I'll skip that.
Here are the things I found most confusing.
1. I thought that the Red blocks were a bad things for a while until I accidently clicked one.
2. I got a lot of lighting related upgrades before I ever saw the need for it. I get the concept and like it, but I think maybe the pacing of this could be adjusted to feel a bit more "just in time" instead of getting lighting upgrades and thinking hmm I hope this helps
3. I don't really play incremental games, so ignore anything that's not relevant to you but, it felt a bit strange that there was no risk (that I could see)
4. I thought at first that the floating pickaxe was an adversary that I had to compete against, and similarly I didn't notice the turtle until around floor 20 when I noticed the button for the pets and realized I had already been using them.
5. The skill tree started very zoomed out for me and I had a hard time figuring out how/when things could be unlocked.
6. I also kept looking at my money and skill points and desperately wanted spend in the early ranks and felt like I wasn't getting a reward since I wasn't cashing in until eventually unlocking some stuff.
I definitely think you have a solid experience here and the polish you've put in is really paying off. Just the ui and accessibility stuff alone are HUGE!
Good luck!!