Well today I had the opportunity to drive the ES350. I arranged this test drive with the retention manager at my Lexus dealer. I can't say that it was an ideal test because I would have liked being alone in the car to be able to fully concentrate on the performance. My route was the city streets.....not a highway.
Aside from being much quicker then my '03ES, the transmission responded beautifully and smoothly. No dragging sensation, and mainly the shift points were as good as can be expected. Downshifts were excellent at normal and above normal street speeds. As I said, I didn't have the opportunity to drive it on the road.
The latest transmission reprogramming that I had done on my '03 helped, but the shift speeds were, and still are abnormally higher then necessary. This was done to try to correct an inherent flaw in the transmission design. This, and this alone would make me consider trading in my '03ES for the ES350.
The icing on the cake is the "tiptronic" type of manual shifting that this new 6 speed unit employs. I love that feature.
I agree with Steve about the interior of the car......I still like the '02 thru '06 ES's better since they have a much more luxurious feel, and they seem much more spacious in the driver and passenger area.
As with a new model car, you have to pay very close to the sticker price, so as of this writing I'm going to sit back and relax until I can make a much more favorable deal.