I decided to get this game despite the mixed scores. However, all I can say is that the game feels as mediocre as they get. Generic combat, generic corridors, generic enemies, generic humans vs aliens story.
Most of the gameplay is an isometric shooter. Point at an enemy with your mouse and shoot. Seems like controls are simple enough. However, the enemies shoot back at you, and your only way to avoid getting shot is to roll dodge, and you have to aim it with the mouse in the direction you want to roll. So somehow you have to manage to shoot and roll dodge at the same time with just 1 mouse. And then we also get the annoying camera rotation, which is inverted. When I want to rotate left, it rotates right, and vice versa. Maybe there's a way to change this, but I didn't see it.
You get a robot companion too, but it's just a regular sidekick really who acts as an extra gun in battle. You can give him a few basic commands, like attack, defend, and heal, and you can upgrade his stats just as you can upgrade your own, but there's nothing much else to it. You can probably play the whole game without ever using it.
You can also get cyber implants and use skill points to improve your abilities, but it's all presented in a very generic and uninteresting way. Nearly every skill is a passive which just improves your damage or a critical chance by a couple of % and that's it. Not to mention, half of the abilities require you to have a specific cyber implant, and from what I've played so far, I've only found the one for the eye, so there are plenty of abilities in my upgrades menu that I can't use yet, and no idea when I will.
The fact that enemies all look and act alike, makes every single battle feel the same. Throw a couple of grenades into the group and fire away till naught's left. Rinse and repeat. But then fighting enemies isn't so bad when you consider that 95% of the time you're walking and backtracking with nothing happening.
You might enjoy this game if you're into dungeon crawlers with no story and simply need to play every single one out there, but otherwise I wouldn't really recommend it.