Last month my wife took in her car because of an oil leak. They did some engine modification and up-sold us on some AC line replacements. When she got her car back it still had an oil leak and her AC would only blow hot air. The mechanic stripped her oil drain plug and there was still problems with the AC lines.
Last week I took my car in for a check engine light. They tried to up-sell $400 for an oil pressure switch, belt and air filter housing. The belt is in good shape and the air filter housing is a missing a screw. Spoke to another Fletchers, Midas and GM dealership about air filter housing replacement. All of them agree that there is no reason to replace the housing.
This location is horrible, go to the 35th Ave and Union Hills location or find another repair shop.