I am getting 16.8 mpg (computer) with 70% city driving. I only have about 600 miles on a heavier 2014 Overland with ORA2 and ATG. I switch between D(rive) and S(port) but I am now playing with turning off Eco mode. I hate that dead spot from 2nd to 4th gear from a dead stop (especially up hill).
I hope mileage gets a bit better after the engine loosens up a bit.
(Kansas/Missouri area with lots of hills.)