I'm a little impressed no one brought up the transmission.
2-3 shift is typically strange in these transmissions. Best way I've heard it referred to is "it's a 'feature' we just have to deal with." However, if you start to have substantial shifting problems from your transmission, you may look into the solenoids. These transmission have three solenoids, A, B, and C. To my understanding these little guys cause most of the heartache and frustration. Best to just change all three out if you're going into the transmission.
I'm still relatively new to these cars and it's by far the most "electronic" car I've ever owned. So I'm still learning.
This is by far a "thread of the year award" though. This will undoubtedly help people pinpoint problems. And if they can't pinpoint them, they'll atleast know how/where to start asking questions.