Thanks for all the answers!
I've driven it for on commute since mon (it's about 35 mi each way), in both open and traffic-y conditions. A few more obs:
1. The seats are decent, but not as snug as I'd like. I do like the lumbar support, but am finding that the seat doesn't go quite as low as I'd like (for some reason I'm getting some leg pain - I think it's the angle the seat puts my foot in relation to the pedals). I already adjusted it all the way down.
2. I took my friend for a short ride - he likes it, but mentioned that it didn't handle quite as flat as my S, which isn't surprising.
3. I like the space in the back; I don't have to play tetris with my stuff everytime I use it (the s2k has 5 cu ft of space).
4. The cabin stays roughly the same decibel level at higher speeds, which is nice. I was surprised to find that there was a decent amount of float in the suspension when I was going 85 mph, given the ride at lower speeds.
Here's another ques: will a rear mm help with lower rpm shifts (say, 3-4k?), or just higher ones?
In general, I like it, and am still learning about it.