I join in all the hyperbolic praise that has been heaped on this car. It is fast, beautiful, handles tremendously, and has brakes that will suck your eyeballs out of your head. Here are the negatives: the convertible top is aggravating; it rattles and squeaks incessantly, and dealers don't know how to fix it. (The solution: leave it down!) The suspension is a bit harsh for daily driving on rough roads. Blind spot when the top is up is pretty bad (The solution: leave it down!). With the windblocker in place, you can't use the back seat. (The solution: leave kids at home!). Biggest gripe: EVERYONE wants to race you - annoying, although you can beat them all.
Looks -- constantly gets compliments and stares. It's almost embarassing with the top down. Power is phenomenal and addictive. Handling too -- you search for corners to slide around. Mileage is decent -- I average 20.4 mpg combined. Interior is comfortable -- seat heaters are toasty and fast.
Lack of one-touch-up windows (other than driver window), odd since the 330 has them. Slightly less-stiff suspension maybe. Fewer rattles in the convertible top. Better exterior door handles (they feel cheap). Better stereo reception (XM/Sirius would fix this).