I just purchased a 2011 Chevy Cruze LTZ RS. I've noticed that on take off the car hesitates a second before it goes. Example: pulling into traffic is very dangerous because when I floor it the hesitation sucks. Is anyone else having this issue?
If it's Savannah, GA, I'd absolutely run premium year-round. The heat and humidity do a number to a car's throttle response down there. Running the air conditioning at setting 2 or 3 for 9-10 months of the year definitely won't help, either.
I'd get the re-flash at the dealer for the hesitation, re-gap the plugs, and run premium in the tank going forward. Also, look into a tune if the hesitation is still there.