This car is AMAZING! From the sculpted exterior, to the performance drivetrain, and finally the ergonomic interior, Acura didnt miss a thing. After 10 years of Lexus crossovers (RX300, 330, and 400h), I needed something with driver involvement. Driver involvement doesnt even begin to describe the fun I have driving hard on descending radius ramps or merging into traffic. This thing is a hoot! During my daily commute, when I cant play, the ELS stereo reproduces sound that is far superior to the Mark Levinson systems from the Lexus RX. My only complaint is the mileage. I expected to hover in the 18-19 mpg range, but so far its just over 16mpg. Again, AMAZING barely describes it.
Sound System, iPhone integration (both audio and phone), engine performance, and overall design.
Other than mileage (Acura - think Hybrid) and maybe making the car 10% smaller, nothing comes to mind.