The game seems really cool (and quite ambitious) but I just can't get into it because of the movement controls. I know real space has no friction, but implementing it like that in a game just means you slide all over the place trying to get anywhere. This is especially notable when trying to land on a planet. Getting the right angle in the first place is hard, but slowing down enough to be allowed to land is nigh impossible with the slippery controls. And that's ignoring the fact you're being shot at constantly.
On the more positive side, I like the ability to lock on to nearby enemies and planets. It's useful to be able to orient yourself even way out in the middle of space.