I took my S70 in for service and the dealer gave me one of these (2010 S60 T5's) as a loaner car.
I agree with pretty much everything that drzoidberg said.
The push-button start was kind of annoying. You have to push it and hold until the engine catches. You can't just push it and let go. Kind of annoying.
I'll admit that the A/C in this car SUCKS. I had it cranked all the way down... so far down that the display said LO (vs. a numerical value for the temperature). The A/C on my 2000 S70 was vastly superior. It was 91F that day I had the loaner car. With lovely humidity levels.
If I ran into this on car at National and it was a hot summer's day, I'd pass.
But it does handle an drive nicely. The seats are crazy comfortable.