This place is SMALL. My brother-in-law joined us for this leg of our trip in Italy and we were excited to have a place for him to sleep, while still being close to the major sites in Rome. We were on top of each other - the pull out couch was very thin and, with the bed pulled out, my husband and I couldn't get to the bathroom at night (crawling out of bed and almost hitting our heads on the loft ceiling, climbing down a very thin flight of stairs, and then running into the corner of the pull out couch didn't sound fun!!). We spent all of our days (and I mean ALL day, we didn't come home before 1130pm on any night) outside the house because there simply wasn't room for all 3 of us there.
Also, please note, the listing says that there is a clothing dryer available. There is not. There is a HAIR dryer (this is also listed), but there is no clothing dryer. Again, with 3 people and no space, drying clothes on a folding drying rack was tricky. (Also, bring your own or buy your own soap, there is none available.)
The apartment is technically close to all of the ruins -- it actually overlooks the Roman Forum at the end of the block. This was neat, except to get to anything, you have a 15 minute walk to get AROUND the sites and get to the entrances. We didn't take any busses or trains anywhere, no need.
On the first day, there were no sheets or towels for our 3rd person, but Luca brought them to us before my brother-in-law arrived. We also couldn't figure out how to get more than a couple of minutes of hot water from the shower. Luca told us about the boiler switch in the kitchen (that was barely labeled) and this allowed for one person at a time to shower for about 10 minutes with a 20 minute break in between showers.
The apartment was fine. When in Rome, you spend the whole day outside anyway. But it would have been great to come home and actually enjoy some down time together without just using this place as a crash pad.