It looks a bit stiff, and I'm kinda wondering how well the SMART button will work out... I mean, in mirrors edge, if you wanted to do a wallrun to turn to lache to cat, you had to time it right, and press different buttons every time. In Assassins creed, when you pressed the one button, you just kind of held it in a certain direction and you climbed, jumped, rolled, etc. in that direction...
One button can't simulate both, so it will be interesting to see how it unfolds...