I have only gripes about this game after attempting to enjoy it several times.
1. There's no real tutorial for piloting the lander.
2. If you fly the lander away from the shuttle, you will—for no apparent reason—reverse course and slam back into the shuttle, destroying the lander.
3. There's a never-ending stream of dialogue that takes up part of the screen that can't be skipped and is too slow to focus on. I tried to read it, but it's not engaging, entertaining, or informative.
4. The gameplay is extremely repetitive and frustratingly difficult, even on the easiest setting.
5. You're always working against a timer, which can build tension if used correctly, but the time limit is too short for new players to get used to the mechanics and have proper time to explore the various objects and enemies found on the asteroids.
Developers, you can still fix this game. Start with 10 minutes on the timer, gradually decreasing that as the player makes progress. Also start with as much of a tutorial for piloting the lander and dealing with the asteroid gravity as the one for controlling the astronaut (the only fun part so far). Let players skip from one message to the next one. Explain some of the pick-ups on the asteroids. I keep finding this bubble thing, but can't seem to use it for anything.
Good luck.