Clean, large apartment with all the amenities we needed (having a washing machine on hand can be a lifesaver on a long trip). Opening the door might need some getting used to, you need to hold it at just the right angle.
Wonderful location. We've stayed five full days and only used public transport once. About ten minutes to Termini.
Nina was a splendid host and helped us with all our problems (every single one of them our fault).
Just an all around great place to stay!