 We traded in our 2001 QX4 with 150K miles for this beauty.  Got the 2WD version (live in the South) with the Theater package - kids LOVE it.  My son can play his games while my daughter listens to her Ipod or watches a movie.  Interior is FIRST RATE in terms of feel and ride quality.  The navigation and 360 degree safety camera is really a great feature.  Performance of the engine is awesome and you will outgun many sedans even though this is a Large SUV.  Gas mileage could be a little better, but c'mon for 400 horsepower, who cares?  Infiniti really got the design right for the luxury SUV market this time, would have never bought the prior model since it looked too much like a truck. 