I've driven a large number of GSA GC's since around 2014 ranging from the high country out west down to the Southeast, and back again. I've never had a problem with any of them. Say what you will about the 3.6, but it's always been a pleasure to drive with a nice torque curve that reminds me of a v8. If my wife ever gets another vehicle, the GC is probably what it's going to be.
Side anecdote, I used one in South Dakota on Pine Ridge Reservation that I dubbed "Uncle Jesse". This bastard and I killed 18 birds, we nearly got taken out by a stray/wild horse on the road, and had so many bugs stuck to it that it it smelled like death. I drove that thing nearly 250 miles every day for a month, and the only thing it ever needed was gas, oil changes and a bath. It was fantastic! We saw a lot together and I would have bought it in an auction in a heartbeat.