Took the plunge. Controls seem a lot more loose than BC:R. I don't really like the stop and start swing mechanic, and mixed with the loose controls this results in a lot of botched grabs.
Also, why can't I map my own controls? The jump is useless and given that there is a stat/trophy for finishing levels by not jumping, having it on X(A) just results in me pressing it accidently and thus ruining an entire level run.
The various perks seem like they could be cool, though I have only found a few.
The first few levels are pretty straight forward design-wise but get you into some fairly advanced mechanics quickly. Though on Normal the enemies seem very passive, and there seem to be fewer of them on average than BC:R.
The music is o.k. thus far, but nothing as good as BC:R. The writing also seems much crappier than the first.
All in all, I like it so far, but really wish the swing mechanic had not been changed and that I could remap the jump and grapple buttons.