I presently own a 2002 S2K and the BRZ will be for my wife. I expect it to handle much like a Civic Si although with the rear wheel performance of the S2K.
I own a 2006 Civic Si and now I just got my BRZ. I did a 2000 mile trip in the BRZ and now I have a hard time driving the Si... The precision steering and control in the BRZ is like nothing I've ever experienced.. And if you're used to high RPM engines, then you'll be more accustomed to the power band... I think a supercharger on the FA20 engine would be good to level out the power band.