Alright I'm up to chapter 6 in Narcosis and I've deleted the game. Lukas, my experience with the game is the reverse opposite of yours in terms of negativity / positivity.
I wish I at least got an achievement on the game (then I'd be able to rate the game on trueachievements.com - it's just a habit of mine to always rate every game I play). But I can't play the game any longer. Just can't get into it, so it's deleted.
I cannot stand the controls. I don't mind at all that the character is slow. I think it adds to the charm of the game. The character is in a big, hefty diving suit, so it makes sense that he's slow. That's not what bothers me. What bothers me is the tank controls. I don't like that hitting left and right on the left stick rotates the character. It makes it extremely cumbersome to control the character. Sometimes, I just want to strafe left or right, not because I want to quickly evade something, but because that's just the way I prefer to move in FPS games. And it's like that in every favourite FPS of mine that I can think of, whether it's Modern Warfare, Titanfall, Halo, Gone Home, The Turing Test, The Witness, etc...
In fact just to make sure I wasn't crazy, I just loaded up The Witness. In that game if you hit left or right on the left stick, you strafe. You don't rotate.
The other part of the controls I hate is that when you use the right stick to look, your whole body doesn't move with you. Christ, 50% of the time my screen looked like the below screenshot. Because I'd use the right stick to look left or right and then half my screen would be covered by the helmet/visor. And I'd have to use the left stick to rotate my character's body to correct.
I'm sorry to the developer because quite frankly I was given this game for free and while I very much appreciate the kind gesture, I didn't like the game. I can't muster the enthusiasm to continue playing.
I know the developer is apparently hurting for sales so I feel bad.