Control wasn't particularly easy. Back button may also give thrust, so that it is more intuitive.
Extra hard to just go and get supply. Perhaps Make the supply area bigger so that it tolerates more mistakes.
But to make it really fun, how about a tractor beam to slowly snap player into the bay? Perhaps make it an upgrade too
But general gameplay is quite interesting. The need to go back for supply is fun. Just wish it will be more rewarding because to just go back is already quite a challenge
(and me too. i did not realize the icon's dual purpose as the health bar of the base, until late into the first game. Good thing is that i noticed it before the second play-through)