Bridging the gap between the PC and console – and by extension, between the mouse and the controller – is no easy task. There’s a reason it’s never been done; a reason that despite all these years and all these innovations nobody has come up with a suitable control scheme that allows the best of both worlds. As Valve’s own marketing video muses, “For too long, players have had to choose between the precision of a mouse and the familiarity of a controller.”
Note: I’ve updated this article a bit based on some more hours with the Steam Controller. Major changes are noted, others are just in there.