No complaints with the Sony system in my '15. My favorite "feature" is the volume **** utilizes the entire volume range properly compared to other Fords I own.
On my F150 (also a Sync 2 system) the first four or five clicks on the volume **** take it from nothing to louder than normal, then the next 5 pretty much maxxes it out, and it's not even half way to max yet. They essentially wasted half of the adjustment range, so you have half the choices in volume levels that my SHO has.