Haven't finished a game, yet, but....
1. Please have the "show all systems with an allied starbase (or enemy starbase if allied scout in-system)" switch-able. The empire tree gets very cluttered late-game. I have something to complain about with the empire tree again, I guess. I'm never satisfied.
2. The Sarkovas Enforcer, at least, doesn't follow the rest of the fleet it's assigned to when the fleet jumps out-system. If I select the Enforcers and re-attach them they'll follow the fleet flagship. They were doing this in the first beta, too, I think.
Got to finish my game to see if there's anything else to pick at. But otherwise, looking a lot better, esp. speed. AI seems a little more agressive, too. May just be my imagination, though.
pek