Looking at 2013 F-150 EcoBoost - any concerns?

I've got 25k miles on mine, with only 2k towing. I had the limp mode that was fixed with the new intercooler. I also have the heat shield loose after an oil change, but luckily it hadn't fallen off yet so I reattached it. The truck works great for us when we travel, and I love it.

My average mileage is just under 16 MPG mixed, and about 18 on the highway. If you can go steady at 50-55 MPH then you can reach the low 20's.