I know you don't want too much feedback on optimization, but I think there ought to at least be some option to change the screen resolution and maybe play in windowed mode, especially if you want people to record their gameplay. I really didn't like needing to change my screen resolution just so the game wouldn't chug because it's forced into fullscreen.
Getting past that hurdle, I thought the resource management/development aspects were enjoyable and well-handled, from the dungeon-crawl mining to assigning men to different tasks , and even now I want to go back just to see if I can reach the objective of having stone barriers. The one part of the game I actively didn't want to engage with was the combat when waves of enemies approached at night. I often preferred to spend that time roaming the mines for materials, and even when I did get involved I lost my men anyway, making me feel like my presence wasn't making a difference.