Power is not the problem. If they could tighten up the handling a bit, this thing could be awesome. Needs some aural attitude to go along with the screaming blue paint too.
The S60, at least my garden variety one, will handle the twisties, but not with the confidence of a RWD setup - as article states, it is nose heavy and understeery.
Paddles are a serious omission, especially on the R design
I don't have any issues with the brakes, they feel plenty strong to me, but I haven't pushed them super hard.
As a very comfortable long distance traveller with enough power to pass whatever you want whenever you want, it's pretty darn good.