We got ours at Prestige and were very happy with the sales person (not so happy with the finance rep., but that's because he didn't like how we were resourceful enough to get our own gap insurance, etc.) but mostly that the 400h was set to proper specs right out of the lot. I've heard horror stories about other dealers setting things to rx330 specs which has resulted in pulling, etc.
Anyway, I'm up to 2500 miles and the thing is really great. Mileage has been right near or over specs for trips over 2 miles - unfortunately my daily commute is 2.5 miles! Regardless, I love the car and am able to get quite close to mpg specs the rest of the time. Lots of room, power, safety, comfort, environmentally friendly, and AWD for the winter.