Let's start with the positives - the game looks very good, runs at a high and consistent frame rate, and the controls and UI are mostly intuitive and easy to use. Currently, there are still some bugs to be worked out, but it seems like a lot of core systems are in place that will allow later addition of content/progression (I'd say this is currently a tech demo).
The dev may already be aware, but here were some of the bugs I ran into:
Overall a very promising game, and one I'm excited to return to once there are some more things to do.