It felt like I was staying at a hotel. They went above and beyond with the decor and the amenities. There are a few steps to go up before you can get to the elevator, but the elevator leaves you right outside the apartment door. There's no noise, as the room faces a courtyard, and the bed is extremely comfortable. The Duomo is super close, and so is the train station. You're quite literally in the heart of the city center.
Check-in was extremely smooth, and we even got help with our bags. Same goes for check-out; we got help getting the bags down the steps, and got help arranging for a taxi to pick us up. If you're going to Florence, definitely stay here! The gold standard for airbnb!