Bought the '08 ES350 over the '08 C-Class , '08 new Accord, & '08 TL. Very happy with the car. Extremely quiet and luxurious. Very large interior. A bit larger car then I wanted, but that is a personal preference.
Great nav system and bluetooth phone works great through the system. Asked several people, and they couldn't tell I was on a speaker. Very quiet & smooth ride. Backup cam has a nice wide lens that lets you see well.
Turns off many navigation features when driving. Also turns off some audio features (mp3's burned to a disc - viewing the folders) A bit annoying, but I understand why. Still allows for speed dial bluetooth which is nice. Also, a bit hard to see out the back.