I just bought a 2012 Fusion, and I've got to say, I've actually been really impressed with the Sync. If you actually read through the manual once or twice to learn the commands and what it can/can't do, it's incredibly useful while driving.
And it has the added benefit that since it uses your own phone's connection (through a bluetooth phone call) to gather it's traffic/directions/whatever, you don't need to have OnStar-like overlords constantly getting updates on where your car is. It sends it's GPS location, once, when you ask for directions or traffic. That's it.