It's really fun! The storyline works well with the survival mechanics. The beginning seems understandable to me. Simple and effective. Right away I felt like I was in a mine collecting items to survive because some catastrophe happened on the surface.
Controls are easy to use. You can get specific tasks done pretty quickly without frustration. The controls seem quick and responsive. Easy to navigate the inventory and easy to move around. One thing- it's a bit tricky to get in the right spot to pick stuff up in the mines.
The exploration is good too. It seems like different areas are blocked off with danger and they change location each game. It ads nice replay variety and you honestly don't know what is going to be in the next mine shaft.
The only thing I needed was more water and maybe more rocks to practice throwing. One time a really fast dog ate me when I left camp/house. there was no way to fight it because it was so fast. That seemed too difficult.
I didn't see any bugs or get stuck anywhere. It looks and plays like a professional made this. Extra credit for ambient room temperature and what the temperature feels like. There's lots of great little details like that in this game.