Mostly on 101 Fwy, PCH, and LA City driving averaging 34.5 mpg. This car is amazing! Fun, performs well, roomy inside, trunk not too small, comfortable after a 2 hour drive, looks good and doesn't scream HYBRID. Purchased purely for utilitarian purposes, commuting and business travel. It is a very pleasant surprise after a month of heavy use. The CVT and hybrid system take some getting used to, but they lead to "strategic" driving. One is challenged by the kW meter not to stomp on the pedal, to attain and maintain speed carefully and to "drive farther ahead down the road". I purchased without tech package anticipating adding portable gps and iPod media.
Hybrid system (especially electric motor assisted acceleration) and kW meter challenges driver skill and rewards with great mileage. Handling and braking is better than I expected, and climate control with dual front cabin controls is excellent. Fit and finish inside and out is superior.
Handling and braking and performance should be improved to world class sports sedan standards. I know Nissan is capable of this. I would personally sacrifice some potential for wasting more fuel in exchange for more fun, especially if upside potential was still built in.