Location, location, location. Seconds from the Pantheon, a World Wonder that people travel hours to see. Taxi stand around the corner. Stroll out of the AirBnB and walk in any direction and you'll eventually run into another scenic spot.
We tried 4 restaurants right below the AirBnB and the food is excellent, employees are generally friendly, funny, doesn't seem jaded of tourists, and all offer free champagne (most likely sparkling wine) to draw you in. The coffee shop around the corner (which I believe is a chain) was not a pleasant experience, workers were unfriendly each of the 6 times I went in. Not the fault of the AirBnB and the hostess had actually recommended other cafes.