This is my very first pick-up truck and I absolutely love my 2020 Duramax 3.0! My previous daily driver was a 2014 Q5 TDI which was also a great car. I like the Sierra more though. Things I really like in no particular order:
rear view camera mirror
awesome fuel mileage
comfortable ride
very spacious inside and out
very quiet interior
the torque!
some say the interior is bland but I like it. It is very functional and easy to keep clean
multi-pro tailgate
that column shifter - so old school!
the looks of the truck
HUD - all cars should have this as mandatory equipment!
ICE - works for me, easy to use
I plan on keeping this for a long time as well.