I gave the demo a try.
My opinion has nothing to do with the aesthetic, I'm fine with realism or silly cartoon-ishness, what I'm not fine with is controls that manage to feel both floaty, and clunky.
The camera just didn't feel very intuitive. I was always struggling to move it around to see what was ahead of me (or were I was running, since the camera doesn't snap to your face direction when you start to sprint)
Even after turning up the aim and camera move sensitivity all the way, it still felt very sluggish.
I have no principle issue with cover systems, but how it's handled i Fuse infuriates me greatly.
When you are literally spending more time hiding and staying in cover than playing the game, you're gonna lose me.
The upgrades kind of gave me some hope at the start, reminding me that Insomniac did make the game, but even in the demo it was easy for me to tell your skill points don't really mean much. It's the antithesis of how Borderlands 2 handles skills, wherein most upgrades are not just number bonuses, but visible changes to how you attack, take damage ect.
The one thing I will say about the game that could be a positive depending on your preferred game style, is it's not easy.
In the demo I was surprised to find the mech enemies actually CHASED me. Persistently.
Doggedly.
I hopped up over a window and hid in a building and watched the thing come right for me, completely ignoring the other squad members.
But I really doubt that will be enough to keep most peoples desire to play. Even the co-op is really really boring.
Egh.