I am loving my new QX. I got it at the start of the new year. It has been great. I have 4 children and they fit very well. The 3rd row has theater seating so seeing the DVD is no problem. The ride is very smooth. It is as close to a sedan as any full size SUV I have been in. It has power to spare. Passing on 2 lane highways is a breeze. The cabin is very quiet despite the big 20in wheels. It has been great on the snow traction with the variable 4 wheel drive.
This is a luxury vehicle with all the bells and whistles but it has the room and power to do work and carry a family of 6 comfortably for long distances.
I would give the second row bench seats the ability to slide forward to increase the leg room in the back seat. The third row is perfect for kids but a 6 foot adult couldn't stand a very long trip.