Well, I finally got rid of my 370Z. A dealer offered me $25.5K (on BALD tires, 2012 Sport/NAV/Touring/M6) for it while taking $1200 or so off of their asking price for a 2010 Jeep Grand Cherokee. I personally like the WK platform over the WK2 for looks, performance, and the fact that they are cheaper doesn't hurt!
Anyway, it will be my first SUV. I've driven it for about a week, now, and love it so far.
Going from the 370Z to this, my first impression was that it was very high off the ground, and "felt floaty". Part of this is being an SUV, and part of it is the 70K mile old shocks/struts. Bilstein HD's are on the way to fix that, though.
The 357hp/389#tq HEMI + AWD makes this thing FUN! It's certainly no speed demon, but 0-60 in 6.8-7 seconds isn't bad for something that is all-terrain capable and can haul your friends around. The AWD makes the acceleration much more useful than my 370Z was on the street, too. For example, the road joining the main street from my apartment complex always seems to cause my 370Z TC light to come on and KILLS power because it's at a slope + has some gravel on it typically from the gravel drives near my complex. The Jeep has no issues. I can leave much more confidently regarding acceleration. Same for wet weather, etc.
The quality of the vehicle as a whole seems as good/better, regarding the interior, excluding the NAV, which is a bit less useful, but not bad.
I average about 3.5mpg less than my 370Z got on my daily commute...but she takes 87 and 89! On the freeway, I get 18-20mpg. About 4.5 mpg less than my Z got cruising at 80.
All-in-all, I am very happy with my trade, and think this vehicle will do me a solid up in the mountains when it snows. I don't miss the Z in the least.