I have a 2016 Colorado 2.8 d max diesel. Put 35k on it so far and love it. 28 mpg running 75-80 with ac on. Can change oil with full sun and ac delco filter for $45. Oil filter goes in from the top. Very easy. Fuel filters every 25k. They are cheap and stupid easy to change. Will pull my 30 hp compact kubota b7800 with feel and 5' bush hog on a 18' equip trailer or my 20' center console much better than my previous 1500 z-71 crew cabs. 7700 towing capacity ain't bad for a 4 cyl. What's not to like? Mine is a "long bed" which is 5'11" I believe.
