I quite enjoyed this game, I am fascinated with gravity as a mechanic and I think this game does it justice. My only issues was with the speed of moving the planets, it was too sensitive to my arrows. I am not sure if every frame the arrow is down it keeps adding speed so maybe its that? or faster frame rates somehow creating faster planet movement. When I got to the third level with the red dots it becomes extremelydifficult to navigate.
I really liked having an aha! moment when i realized if i didnt want to overshoot the ship i should just steer it from afar instead of my initial instinct of bringing it real close to speed it up, then having trouble adjusting its trajectory.