We just changed 4 PAX tires after 53,200 miles. Everyone was surprised that it was the first set of tires after the original. It is expensive (about $1,300 for the whole job), but we thought safety is priceless knowing that we won't loss control of the van with a bad tire. We love this van and drive it every day (long daily commute and weekend leisure).
Smooth handling & sturdy. Great entertainment/peace of mind (kid watching DVD in the back with headphone and I can listen to radio while driving). Very roomy.
Noise level on freeway should be reduced. Brake squares and was told by dealership that it was normal. A better brake system will definitely help.