The Ford Edge is a mostly reliable car but redesign years need to be avoided as it takes Ford a year or two to work out problems. 2015 was such a year for Ford, and that year has some engine problems and in car electronic issues. 2016 it was much better and while electronics score average, nothing else shows up in Consumer Reports so it gets an overall average rating. 2017 is even better, no issues and it scores above average reliablity overall. 2018 will probably be the same. If 2019 the design does not change it should be a fine car for awhile as the Edge is fairly reliable throughout its history. If it does get changed watch out.
Ford is not quite as good as Toyota but it can and does make some good cars, trucks, and SUVs. It is like GM - the reliablity has improved much over the years since they both adopted Kaizen process improvement (a model in Six Sigma) that Toyota has used for a long time. They just don't do it as well all the time with the continuous improvement so it is on a model by model basis for the domestic manufactuers (I throw out Chrysler because they never really adopted Six Sigma the same way so far as far as I know, and it shows in their quality).
I did rent a 2018 this past year when my Saab was in the shop for a repair I did not want to do, and the car was fine. It is a nice small car that handled well, the interfac to the screen was easy to use, and overall the construction seemed to be well put together. Not a lot of power but you don't get one of these for that. Gas mileage was in the mid 20s and overall I liked the car even if it is too small for my family of four. Best of luck if you decide to get it.