Location, location and again location, which you cannot beat. Pretty much in the center of Rome, with Spanish Steps just around the corner, and no matter what direction you go you get to major landmark in 30 min or less, and grocery stores, restaurants, and posh boutiques all in minutes of walking. Apartment is well equipped, and with a charming combination of new and old makes you feel as part of the city. The fact that it's booked in a year in advance says it all.