Had it since November '14 and have about 8000 miles on it. My list, in no particular order is:
- 100 degrees outside, hot-as-satan's-ass-hole inside, use remote start and the ventilated seats don't come on automatically. My 2010 Suburban did that and it was massively cheaper.
- Need to be able to turn off ACC. If you've ever driven on really dirty roads covered in snow, sleet, slush and other crap, you've had the thing simply turn off. It really needs to be able to operate as a regular CC in those situations.
- Let me use the seat memory without turning the car on. Every time my wife drives the car I have to destroy my knee getting into the car to turn it on so I can hit the memory button and move the seat. I know GM can go this because my wife's Acadia Denali does it just fine.
- Too many little recall/service things. It's in the shop as I write this having some u-joint bolt loss of index thing fixed and having the torque converter shudder reflash done. When I got the truck it needed a replacement front axle because of a busted joint boot and they've had to take down the headliner because the rear AC line wasn't connected and my kids were frying in the back. While I have faith they will get it all fixed, this is absurd for a new vehicle at any price, much less that of a Denali.
All that said, I really like this vehicle. I'm constantly impressed with how good the fuel economy is given the size of the thing and it's engine. It's comfortable and offers great utility.
I probably should have waited for a 2016 but I'm not going to lose sleep over that now.