This is great fun, and has a lot of potential.
The main issue I see is that there isn't a lot of variance in the early game, which makes it a bit repetitive after a dozen games. I'm sure this will be fixed in the full game, but some extra variety in the demo would be great.
Another issue is the low level of information on enemy actions. We might be a bit spoiled by the full transparency of Into the Beach or Slay the Spire, but some increase of the information level would be appreciated. Otherwise you get tempted to go on wikis, and that spoils some of the fun whether you do it or not.
I wish you success!