I've only had mine for two weeks, not even getting past the "break-in" 600 miles yet, but I've pushed it a few times, and WOW. This car can barely be contained. It urges you forward and practically demands to be let loose. Got mine in black with tinted windows and it's a beast. It took me weeks to track down the one I wanted, but it was worth it.
Speed obviously! Nothing like needing to move fast and being able to. I also love the design. Despite being a "wagon" I think it looks sleek and sexy. Well constructed interior and exterior. It's tightly built, handles the road and responds like a sports car.
None, really. Gas mileage hurts more than my previous car, but come on, a 263 HP turbo that gets around 20 mpg. Who's complaining?