Contrary to my own preachings, I caved and got one also. Not sure which "version" I got, but it was worth about $1200US. Though I'm fairly confident about the CVT's reliability (given it's history with the Skyline(?) in Japan), I have to admit the "newer aspects" of the CVT did get me to thinkin': first time with a V6, first time with AWD (I think). I have no clue about the Nav coverage -- don't have nav.
Believe it or not, one of the reasons I picked it up was for the tire warranty. As I'm sure we all know, factory tires regardless of the make, come with nata for warranty (and Goodyear doesn't offer anything anyway). In my extended warranty, my tires are covered for 50K km/3 yrs, non-pro rated, no deductible. Given my past experiences with Nissan's factory tires (Bridgestone Duelers on Pathfinder #1, Dunlop Grandtreks on Pathfinder #2), this was very attractive, aside from my general disdain/hatred of anything Goodyear. Granted, the value of the tires doesn't equate to the value of the extended warranty, but it was ONE of the selling features for me.