I have an 08 Edge Limited with 150,000 miles on it. Like the one you are looking at it is fully loaded (roof, nav, power trunk lid, etc). Mine is AWD as well. The key is the maintenance. I have absolutely no issues with mine and fully expect to go well over 200K with it. My daily commute is over 120 miles and I don't even think about the mileage on it. That said, I make sure I never skip a service though I do most of them myself.
As for issues, the only non-maintenance repair I have had to do was the infamous PTU seal on the AWD's. Mine went at 92K. I may have been lucky given the other horror stories I have read but mine was fixed on the first try at a reasonable price at a Ford dealer I trust. I never had another issue with it.
I'd say that if you can get proof of maintenance on the car, the mileage shouldn't be a worry.
Tom