My parents had an s60r for 5 or so years. They did euro delivery and everything. Other than looking ok, I feel like they are pretty garbage compaired to any of the S4s. There isn't much of a modding seen(at least compared to audi), the build quality isnt as good, and the engineering isnt as good. If I really wanted a haldex awd I would buy a mkiv r32. They are just slow, heavy, safe, and boring euro sedan.
I drove my parents in the snow once and the thing just would not play ball, it was way to planted. Just refused to over steer.

I am not saying that they are horrible cars by any means though, they do have some redeeming qualities. Ours would throw HUGE fireballs and backfire on overrun when the cats wore out. That was great, chicks dug it.

My advise is always buy an S4, you will be far happier.