Had a great stay here with our family of 9. It is a lot of people to pack in to 3 bedrooms but having the pull-out couch in the living room definitely helped as well. The location is absolutely perfect and the host is so incredibly warm and welcoming. She gave us tips on restaurants and other things to do in the area. A nice touch was that they have a washer & dryer in the unit, which is very rare from what we've found in EU. The dryer had a tough time getting the clothes fully dry, but it was still a life saver for us on our trip. It is a very old building and apartment and could benefit with some updating, but it was clean, comfortable, and located in one of the best locations in all of Rome. I'd definitely recommend staying here if you are traveling with a group and don't want to break the bank staying in this wonderful location.
One other issue I forgot to mention above was that the very small shower room, the water tended to be either hot or cold and took a long time to get hot. Couldn't really get that shower to have a consistent temperature. This didn't seem to be a problem in the bigger bathroom so our family kind of waited their turn to primarily use that shower instead. So even though it was an issue, luckily it wasn't the only shower option.