Thanks so much for the feedback!
I fully agree on all these points.
I've been working non-stop the past few days to get the demo out in time for Steam's "Going Rogue" fest, but I've not been satisfied fully. All the points bring up are already on my list, and I will get to them in the next couple of days. I thought it would be best to release the demo in its current state still, in a "better than nothing" mentality.
You haven't seemed to talk about the dungeon of the demo. Have you not found it?
Edit: Looking back, I should have polished up the demo instead of rushing to release it on time for the steam fest. I've taken it down now to do exactly that.