Ok, so after putting some miles on it this weekend, I am ready to give my initial thoughts:
Compared to my old Z71, the ride feels much more smooth. I dont know about the rest of you, but the downshifting on my Z71 was terrible. If I slowed down in traffic, and then went to speed up, there was a noticeable hesitation. No more, they seemed to have worked that out with the ZR2. I dont know why GM would do this on the ZR2, but there is about a 1.5" to 2" rake up front, but that will soon be fixed with a Rough Country 2" leveling kit. I put about 120 miles (mostly city) on it over the weekend, and I really didnt notice a difference in gas mileage. The dealership filled it up on Friday for me, and after driving all weekend, I am still above 3/4 full, and averaging 16.2 MPG.
On to things I dont like:
Honestly, I think I liked the interior of my Z71 a little bit better. The all blacked out leather interior of the ZR2 seems like it would be more fitting on a GMC Denali. You can see in my picture of the dash, the bezel around the stereo and shifter is a matte silver that I have no doubt will probably be scratched to hell within a year or so. The glossy "carbon fiber" pieces in my Z71 just seemed like they would last longer. The leather seats are extremely comfortable, but given the ride height, and having sliders instead of step bars, I think sliding out of the truck is going to eventually going to cause issues.