Just purchased the 08 ES 350. Have driven it about 3 weeks and put over 1400 miles on it. Great car. Very quiet and comfortable. I also own an Acura TL which I love, but there is no comparison to the comfortable ride in the ES. Great car. I read all the reviews for the 07 and decided to wait for the 08s before I bought. I have not experienced any of the problem with down shifting reported in the 07s. Be careful with the remote in your pockets against other keys. It could accidentaly let the windows down.
The nav is great. Took a while to learn the features. Cool seats are a plus in the state of NC. Great ride.
Make the remote where you have to press the open button twice and hold to let the windows down from the outside instead of once and hold.