Game design will only appeal to a few. There's no speed control during flight and no radar minimap. Outside flight, you can take ships that use energy weapons (free ammo) or ballistic/missile (costly ammo), but for economy you don't want to take missions that require that ammo. Flight doesn't feel compelling as you can't maneuver well and you feel constrained not to use ammo weapons. I've read missions get harder if you bring more ships, plus you have to pay fuel or docking costs for more ships while your mission payouts don't really increase. So you don't really want to spend money on more ships. But there's also not much to do with money other than buy supplies and ammo. So you have uncompelling flight gameplay plus uncompelling economic gameplay.
On the plus side, game looks and runs well. They really did a nice job with very limited assets, it's just the gameplay has such narrow appeal.
Also, it's outer space! Why is there a boundary box? You can only fly up and down so much before your ship hits an invisible wall, and you can't do a "loop" either, just pitch down to fly back down again.... it's so weird.
Also, a manual save, or checkpoints would be beneficial instead of just a single save... I was forced to start over, after getting intercepted by a pirate fleet that had an OP cruiser that kept owning my entire fleet. There's no way to "disengage" from the battle either, or anything... so I kept getting killed, and then be force to replay that same battle over and over again. (Granted, I was low on fuel, and ammo when the pirate fleet intercepted me, I may have been able to take that cruiser if I had some more missiles / cannon rounds).