I don't have first hand experience, but can tell you my BIL drove triaxle dumps, and when his Freightshaker went in for extended repair, which was waaaay too often, he would sometimes end up with a loaner from the dealer with an Eaton Auto-Shift. He hated it, and it would sometimes get in the middle of an intersection and have a conniption fit and leave him sitting there. Later, his boss sold out to a larger fleet that had a bunch of Auto-Shifts, and they had their hands full with problems. Lastly, when I was back East we were a Benjamin Moore dealer, and they had a bunch of Aeromaxes and Sterlings with them. The drivers hated them, and they had the same conniption fit issues described above.