I have had both for yrs now. Full auto thr entire time and manual (working perfectly) since I removed all the US Shift wiring that didn't require shifting into 2nd or sport mode.
I use full auto for driving back and forth to town sand and deep heavy snow. You can't crank the wheel fast enough and shift better manually then these new automatics can- it's instant!
If you know you're coming to a spot, you can just pull back on the shifter and it will stay in that gear for you. So when you're wheeling.
You know you don't have to worry about it. Shifting on you at an inopportune time, like going up a waterfall or something like that.