The apartment was adequate for a group of 10--6 adults and 4 children--but there were two or three problems with our stay that disappointed us--and caused us to give no more than a "3 star" review. First, the air conditioning in one of the bedrooms did not work the entire time we were there (4 nights), and given the heat in Rome in early July (in the 90's F every day), that was problem. Second, there was no WiFi for about half our stay, and several of us needed to have access to it to check messages from work, etc. The young lady that came after we called was pleasant and brought us a device that made the issue better, but the WiFi was still "spotty".
Finally, we had read that Rome has a problem with uncollected garbage in some neighborhoods as well as litter on the sidewalks and in the streets. Unfortunately, this was true in the neighborhood where the apartment was located. Though not strictly a problem caused by the owner, in walking on the sidewalks and in the park in the neighborhood (including the sidewalk just outside the apartment), we had to dodge the trash and garbage on the sidewalks as well as the occasional dog poop. The sidewalks need badly to be pressure-washed, and the garbage accumulation dealt with by the residents if the City of Rome is unable or unwilling to deal with it.