I was wondering what the S5 is like. Unfortunately the sportback has the V6 engine (like the S4) rather the the V8 of the S5 coupe, but think it could still be a decent "sensible" car. Much more spacious than the RS4 and looks quite good. Don't know if it's worth the extra over the B8 S5, though ...
I'd be very interested to hear of anyone's experience of it.