So, I've been playing this for a while. I'm not too far into it, but my verdict so far is that it's unexpectedly competent for a free game. Not without a few issues, though.
To start it off on a positive note, the gameplay itself isn't (to use a comparison that everyone here will understand) AI War level of tactical depth, it's still enough to keep me interested, and the story itself carries the rest. I'm playing on normal mode and have completed 7 missions so far, and at the very least the battles have been diverse enough to not be repetitive. From what I see, I've still about half the units left to unlock, so that will probably introduce more possible strategies as well.
Normal mode is actually fairly hard, or maybe I'm just bad--I thought I'd set it to hard, but apparently I did not, so I'm probably just lacking skill. Some missions can be harder or easier depending on choices you make. All I can say now is that the one I'm stuck on right now makes me want to murder children
which is actually a valid option for a Machiavellian solution.
The soundtrack is really good. That's always a plus.
I have two major complaints: Firstly, the battle interface can be finicky. Because of the perspective, when units are vertically adjacent, it can be difficult to select the intended target and I have to be very careful or I risk taking action on the wrong unit. Also, because the scroll wheel advances text for some reason, my instinct to scroll out to view the whole battlefield at the beginning causes me to miss narration, which sometimes entails important instructions. If there is a way to change that, I've not found it.
Secondly, the in-battle voice acting. By and large, the quality of the voice acting is fine. It's not ear candy like, say, Bastion, but it's decent. My problem is that the game is scripted to have a ship's commander speak in reaction to actions taken by or against her unit. Ordinarily not a problem, but sometimes the randomly-selected speech chooses the same line multiple times in a row, which sounds awkward. Especially when it's one of the longer sentences that is just really weird to hear repeated verbatim. It would be a simple enough fix--just tell whatever logic chooses the line to make a line ineligible if it was played immediately beforehand.
Anyway, I'm having fun. Thanks for pointing it out.
Edit: Sunrider: FA is free, while
this is going for a dollar. Let that sink in.