Well I’m late to this dance so I won’t repeat what has already been posted. I do like my truck a lot. I do tow both a small travel trailer (7K) and a 4.5K boat. You can’t compare the diesel to the gas when it comes to engine braking and that, in my opinion is the best case for a Duramax, if you tow in the mountains. Otherwise, I love pouring in regular fuel but wished I had gone with the LTZ to get LED head lighting. I’m old and my eyes don’t like the dark, unless they are closed. I’m looking to spend some coin on a system that will fit the LT grill, which is again, another like for me compared to the LTZ unit.
Good luck.