I've been playing the StarDrive game. I will say two things:
(1) game has potential for sure and I am looking forward to the release;
(2) I have put the beta into "storage" for time being.
The main reason for #2 is really quite simply a user interface issue that I am really believing must be updated by release: a big part of the game is designing ships to counter enemy ships: you can partially zoom in on enemy ships to see what they have got but 'partially' is the key operative word: you can't really get a big zoom in so that guys like me with so-so eyestrain cannot really make out what the enemy ship has got: teenagers undoubtedly could.
So you can calibrate to see if my review counts for you:
5 stars: Gal Civ 2, SotS 1, Armada 2526, SINS (aka SotSE, I think)
4 stars: Endless Space,
2 stars: SotS2, Star Ruler, Distant Worlds
Never played: Legends of Pegasus, Gemini Wars,