Mary's place is conveniently located right along the river and is close to the Duomo (you can actually see it from her window). The place itself was exactly as pictured - clean, beautiful and pretty large. The check in process was through an app that allows you to open both the main door and the apartment door. The finishing touches and the furniture made it feel like we were home rather than in a hotel. I would definitely recommend staying here to anyone visiting Florence. Really cool way to stay in Florence!
Be mindful that there's two different sets of numbers on the same street so you'll need to walk a bit further into the street before you actually get to the apartment that was pictured.