This may be the best Air BnB we have ever visited, in Rome or indeed elsewhere. The location is amazing, just steps from Piazza Barberini. The apartment is precisely as described. There are two really great terraces, an excellent floor plan, high ceilings, in an elegant and (for the location) supremely quiet building. The owner Mario was very responsive to one minor request on our part, to remedy a situation he could not possibly have foreseen. We were a party of four and felt we had room to spare. We visited in January, and in warmer weather we would have even more room, since we would have spent more time on the terraces. I would definitely stay here again—and again. I could write at much greater length, but it would just be one superlative after another.