The only complaint I have is the acceleration is bit jerky if you don't ease off the gas pedal. Nice power. I'm not usre how the Avalon gets 31 MPG and this gets 26 highway. They could improve that a bit. I get 20-22 average in mixed driving, depending on how much highway driving.
People compiment the interior a lot. I love the 8 CD changer in the trunk. The gear ratios are the best I've had in any car. They don't downshift right too soon like a lot of cars. I've used the autostick on entrance ramps a lot.
Better gas mileage, though it's not "bad". Maintenance schedules could be reduced. My old car didn't need a tune for 100k or a timing belt either. Recommending changing the transmission fluid and radiator coolant at 30K was a bit soon in my book.