Just my experience here. I've towed with a 16 Escape (with Factory Tow pack) and a Prodigy 2 brake controller. Maybe 4000KM this year through Canadian mountain passes with a popup trailer; 2050lbs (propane tank, battery, gear included) plus 2 adults, 2 kids and about 160lbs in the cargo area. No issues, handled great up and down the passes and had passing power when needed.
I mentioned in another thread we just upgraded our popup to a larger unit. All-in-all about 300lbs heavier than our current unit. Haven't got it home yet, picking it up tomorrow (Wednesday). Intend on going up a small local mountain to see how she does on the way home.
I search in vain for a hardwall trailer that would fit our family of 4; there is not much out there and what is there is cramped or inconvenient sleeping areas. What I mean by that is some models have a queen bed, then a dinette area that you'd have to tear apart every night for the 3rd and 4th person to sleep on. Then you have to set it up in the morning to eat. Another option is bunks but they are cramped and more for small children (under 10). If there are only 2 people then yes, loads of options for towing with the Escape.
We prefer the popup style in this towing "class". You get more room for your dollar, a friend has a hybrid trailer that is 20' long. Our popup is 21' long once setup. We have a king and double bed, they have 2 doubles. Plus we can sleep 2 more adults and 2 more children on by converting the 2 dinette areas (yes, two! ;-) ) Also, you get a lower towing profile; better wind resistance and gas mileage.
Ingot Silver 2015 EDGE SEL 3.5L AWD, Towing Pack +