No problems so far. Got the GT primarily for the wheels and nicer cloth. My '97 GrandAm had been a great car since new. The 6-way seat with leather doesn't give you much more angle/height adjustability than the 2- way with cloth. I'd like a steeper seat angle adjustment and lower tiltability for the steering wheel, but probably both are by design to prevent the driver being launched OVER the airbag! Thankfully, much less interior chrome (taupe interior) than most supposedly nicer cars. To each their own, but I like its looks inside and out better than GTO or Grand Prix.
Manual-shift option works great and very convenient. Rarely if ever miss the extra few dozen lb-ft in my Z28. Traction control works great. Great size and shape - undeniably upgrade from Grand Am. Outstanding dealer experience from Jones Pontiac, Sumter SC