I purchased my Sierra new, now have 49000 miles. Have had a couple problems but the dealer took prompt, and courtious care of my truck. Fun to drive, looks great gas mileage isn't bad either. I keep the oil changed, and just installed a K&N air filter and will see if my MPG improves. Overall I would buy another one.
Good looking truck
Maybe the rear window like Toyota has, have it open and close electrically.