What do you want to know?
I realize that this is the 370Z forum, but since I'm going to be learning from you on the Nissan side, perhaps I can return the favour on the Alfa front a little.
Just got the (used) 370Z and barely have 20 miles on it (including test drive and trip home). Now they are both hibernating together until some time in April. Don't worry, my wife's last car was a Honda, so the Alfa speaks Japanese. :-)
I'll post a bit of a comparison, so far, when I get a chance.
Spoiler: The 370Z is my wife's car. I may drive it from time to time, but they'll pry the keys to the 4C from my cold dead fingers.