I have 2014 Qx60, 2yr old in August, 16K miles on it, never been in the dealer for anything other than some minor recalls. Perfect car so far. I usually average about 22mpg with combo city/hwy driving. All the active cruise control, lane departure, backup panic stop and active front collision stopping are great features. Sometimes a bit annoying with all the beeps and buzzers, but saved my wife from backing into a parked car and me from wandering out of my lane more than once.
Only complaint so far is the head rest DVD screens are too close to the kids faces, on long trips, they tend to get a little motion sickness watching movies vs our previous SUV that had a center roof pop down screen a little farther away. But then again, they are 22 and 27 so they were only in our car for 1 trip