I test drove it and it was ... ok. Considering I am switching from an 09 G37s, its a bit of a change in interior comfort, ride quality, etc.
I suspect i'll be able to improve the ride quality and upgrade to navigation, etc later on down the road.
The real concern I had was the 4x4. Its a CarMax car with 74k on it, overpriced, blah blah... when I took the pathy into a gravel driveway to the dealer's chagrin, I engaged the 4x4 ... I got indication on the dash but I never really heard or felt anything different with the driveline.
Are these pretty quiet when engaging 4x4? is there a noticeable difference in the feel of the animal while engaged? Am I being overly paranoid?

thanks in advance for your feedback. If this issue is set to rest in my mind I'll probably go give them thousands more dollars than its actually worth this weekend... cause I need a real vehicle for leaving the asphalt here pretty quickly.