Air suspension was a gimmick in my opinion. I couldn't feel the difference but I was the lot guy so I moved them at slow speeds and empty... Coil springs do give it the best ride out of the bunch and the exhaust is a mofo lol.
Touchy gas, brake and uber light steering I didn't mind because I drive a Honda so naturally it felt good to me. Like r3ccOs said, it's not a problem, just a preference and getting used to it.
My favourite colours are white, the funky Orange ones and Black Forest Green. (I don't think you get the black forest on a Sport)
Careful with the GMs I heard that steering column is offset to the right about a couple inches and it can make or break the truck.
**Also, consider the fact that car manufactures don't account for the exchange rate so how much are paying really relative to the USD?