The first big deal is the seat comfort. I'm able to drive for over 3 hours without pain in thighs as I experienced in my BMer and my RL. Gas mileage at 75-80 is 34 mpg. Around town it's about 21.5 on mid-range gas-- -doesn't need supreme. I miss the 2 compartment (upper and lower full console in which I could put and FIND smaller things. Voice recognition, as usual, isn't ready for prime time---it really stinks! Accepting telephone numbers is near impossible even with my radio voice. It's quick off the gun, passes with ease; power to spare; and interior room is fine with good trunk space. I probably will go for another TSX as my lease comes due in 18 months.
Gas mileage. Driver's seat support and firmness. visibility. Zip and quickness. User friendly(especially when compared to the Germans!!!) controls.
Voice recognition. Storage boxes. More of a wrap to make driver seat more like a snug cockpit---it's close but not there like a Mercedes C300.