Had mine about a year.
I really hated the motor/tranny combo for a couple months after having an Ecoboost F150. It shines with low end torque and, of course, more hp.
I finally did some research on the 3.6 in my JK and found that it gets moving but you need to push the pedal " a lot" for it to get up and go.
Surprisingly, it accelerates better than I thought it could.
Back to trailering. Get comfortable with manually shifting up and down.
I haul a 6.5'x12' (guessing 1100 lbs + the SXS) with no issues. I live in a hilly area not mountainous. I can easily maintain 55, 60 or whatever speed I want just keep the rpms at 2500-3000.
Gas mileage will suck but if gas mileage is an issue for you then a wrangler is probably a choice worth re-evaluating.
Mine is a '13 with 3:73 as well.
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