I tried it briefly, the mouse/keyb controlls were terrible, mouse sensitivity was ridiculously high for me.. i would compare it to playing Baldur's Gate using rudder pedals and a flightstick, i mean i'm sure it's possible and you would get used to it, but i would try to avoid it

How do you even move slowly? Is there even a button for that? Sneaking is very important sometimes or just being able to move very slow where there are heights so you dont fall to your death (there's a lot of those).