I admit being irritated by the "we don't own this base, but we have an understanding with those that do" stuff over and over. It would have been nice to have a "welcome to Battleship (insert name here)" when you're on a battleship, for example.
But actually, the biggest gripe I have is the trading system. It would *really* be helpful to be able to see who produces what, no matter if you're on the ground, or don't have any of that particular commodity in your hold. I haven't been able to do enough cargo moving to check and see if there is actually a dynamic market system implemented, as intimated in the early previews. Dynamic markets, supply and demand, pirates trying to cut off vital supplies to a planet and smugglers trying to break blockades... all these would *tremendously* improve the logevity of the game.