Personally I am getting to like Comfort with the M/S left-tilt transmission mode. For around-town driving, it really knocks down the lag, and gives a nice gearing feel, almost like I'd be driving it if it were a manual. Also, since I have the dynamic dampers, the ride is a bit more refined. That said, Sport on Sport rules.
Otherwise the lag is the first thing my wife noticed and she's not fond of driving the car at all because of it. I maybe won't tell her about the workarounds, so I can keep the X2 to myself.