We were coming to Rome for the last 2 and a half days of our holiday. Due to the service from the host we lost half a day. We asked to check in at 1330 via the app at 8am on the day of arrival (check in is 1300 on the listing) he didn't reply until late morning on the day to say that due to our late notice he wouldn't let us check in until 1800 (we had heard nothing from him leading up to the trip and thought his notice was even later than ours and contrary to his listing). We had already set off to Rome and had two large suitcases and rucksacks. We then had to carry them around all afternoon so could not do the sightseeing we had planned. When we arrived at the building we were kept waiting outside in the rain for 10 minutes before anyone came to the door. Not a great start.
The apartment itself was fine and exactly as the pictures suggest.
The area is about 20 mins walk from the Colosseum which is good, but it's quite a run down part of town I would recommend staying closer to the tourist attractions as it is much nicer.
Overall, probably wouldn't recommend. The host took a long time to respond to messages (over a day in one instance) and we lost half a day due to him not letting us check in until very late. If he had told us earlier we could have tried to make other plans for our bags.