This is a difficult review for me as the location and Lorenzo are wonderful!You're next to the forum and many of the oldest sites in Rome. The room was exactly as described in his current listing. Lorenzo was an excellent host and highly responsive to our needs. He got a private driver there and back without batting an eye. My issues are largely due to things that are or may be out of his control. First, We went to Rome during an uncharacteristic hot spell. As it was not "summer," however, it is my understanding that the property owner (i.e., not Lorenzo) would not permit the property to use Air Conditioning. This turned the apartment into a unbearable place to rest during the daytime. Second, I would have sworn the listing stated at the time I booked it that it had a washer. This became an issue because of the heat (see above). I could be wrong, however; I frequently am so I don't want to penalize him too much. If not for the heat, this would have been a great stay.
My advice then is simple--if it appears Rome will be hot during the time you are staying in Rome, check to see if the A/C will be available.