I keep looking for an upvote button, because this is very useful feedback. Thank you!
Overworld's definitely in the roughest shape at the moment, and it'll take a little bit before we get to revising it. I definitely concur with your comments on that front, though.
I've been tightening up the battle system as the campaign has been ongoing. I think that by not this build that just went up, but the next one, I can probably address a few of your comments there.