My wife, daughter and I were lucky enough to stay at Elisa's apartment in December 2014. The apartment is in the most incredible location with some of Rome's most exclusive shopping right outside the door, and wonderful famous Piazza's within a couple of minutes walk. The apartment is very quiet, clean and very well stocked. The three of us fitted well, with the sofa bed being very comfortable for our 9 year old. Elisa is a superb host, and made our stay all the more wonderful due to her assistance while in Rome. The only negative is that if you are having a quiet day at home, the TV is not particularly good, and has very little reception.
Other than that, we highly recommend Elisa's apartment.