Yeah, it's not bad. I've played far worse games.
As mentioned, the tactical combat is not very intuitive, and therefore extremely clumsy. It has a steep learning curve in general.
The strategic part of the game's not bad, and you do design your own ships for the most part. But none of them can be customized; there's three areas of a ship, and each one can be swapped out for a new type. But there are no aesthetic options.
Ditto on the voices... I wanted to throttle the voice-actors.
Sword of the Stars does some things right, though. Fleet battles are hands-on, in a tactical interface, so you can outmanuever your enemy. Also, if it's a battle in orbit around a planet, you can direct your weapons on the planet, lowering population and deteriorating it's atmosphere and habitability. There are even biological weapons; virus bombs. Assault shuttles, too, that leave their destroyer-class carriers behind and enter the atmosphere conducting planetary assault.
I actually like the no-frills strategic phase.It's clean, smooth, and all the info you need is readily visible with a single click.
If you like 4x games, I advise giving it a try.