Our Tribeca just turned over 12,000 happy miles. It's truly a great car. Over the last 2,000 miles we have averaged 20.4 mpg. The state-of-the-art aluminum boxer engine is powerful and very smooth. It makes good horsepower, but being only 3.0 L, the torque is rather low for hauling a 4100-lb auto. This means it downshifts quite a bit under load. But hey, if you are on a road where it hunts, or you don't like where it shifts, you can hush up and shift it yourself. The "Sport shift mode" works great. Ride, handling, and braking are very good. We have the two-seat model and there is loads of room in the second seat. Styling is also a plus - it doesn't have the truck look.
Smooth power. AWD in rain and snow is fantastic. Dual auto climate control is excellent. Bold front end styling. Quality construction. This is not an expensive small SUV, it is a reasonably priced luxury SUV.
Could use a little more power, especially for towing, but I would hate to give up the fuel efficiency. If they ever turbocharge this model it will go into orbit.