We're happy with our '12 Sport Limited CVT that we've had for a year. No problems. We do have the dash buzz when it's cold, but same as my previous '09 WRX and my current '11 WRX..... I wish Subaru would fix up that issue.
I'm definitely not crazy about leather seats, too slippery, and the moonroof cuts down the headroom. I like the seat/mirror heater, though.
We've gotten 37 on the highway once or twice, when driving at a steady 60.
From our experiences, the '12 (first model year for it) doesn't have any exceptional issues.