I've had a 2017 Edge Titanium 2.0L Ecoboost AWD for almost a month now. I bought it used with ~30k miles on it and I've put around 2000 miles on it so far. I do mostly city driving with some highway here and there so my average MPG has not been great...roughly 20 MPG average for the first few weeks I had the car. Granted, I don't always watch my foot, and I did have fun with sport mode a few times.
Last weekend we took a trip to the beach so I decided to keep a close eye on the highway MPG to see how that went and I was thoroughly impressed! The total trip was 740 miles round-trip (~90% highway) and my average fuel economy came out to 30.9 MPG. I kept cruise control around 67-73 mph while on the highway, except for a couple of cities we went through that had a good bit of traffic and cruise control wasn't worth it.
Overall, I really like this car, although I wish the AWD model had the auto engine stop, to help with fuel economy in my day-to-day city driving.