 I have owned both 04 and 06 sienna Le model. 04 model had numerous issues with a/c and for 06 it got a minor face lift so we sold it with only 20k miles of use. The 06 le was perfect, had 40k miles of use, mechanically perfect, never had issue with brakes, engine, axles,trans, doors like most other people are complaining about. we averaged 22 mpg in its entire life, mixed city/hwy use. Honestly brakes are still had over 70% life left. My only gripe was it had a noisy acceleration, it likes to rev low, great for gas mileage, and provides a super quiet in cruising mode. It does shop for gears if you have it on cruise control especially climbing gears, so I just take it out of cruise.