"Knowledgeable salesmen. Good prices. Used Car Post sale service is not very good in my opinion. Bought a 2008 Denali. Within 3 weeks check engine light comes on. It goes off & on for several more weeks. I'm back and forth to dealer 2 - 3 times. Dealer finally suggests fuel injection service but chooses not to cover cost as it is deemed a maintenance issue (even though car was recently purchased from them). Purchase used vehicle at your own risk. Seems that new purchasers are treated better."