Fabrizio was a great host. Our train was delayed arriving in Rome and he had to go help a guest at another location, but once I let him know we had arrived, he was able to return very quickly and check us in. Note that the building is not accessible if you do not have a key (unless someone else goes in/out) and there are several bars nearby that have wi-fi if you need to communicate before checking in. He was also very responsive if we had questions and followed up to make sure everything was going well during our 4 night stay.
The apartment is similar to that of an extended stay hotel with a wardrobe, small dining table, kitchen with fridge, sitting area with TV, and typical Italian bathroom with its tiny showers. The washing machine in the kitchen was also very helpful for us in the middle of a 10 day backpacking trip; we brought our own detergent and hang-dried. The location was perfect for us - very centrally located between the largest attractions and the train station. The neighborhood is a great mix of cultures, bars/cafes, restaurants, and small markets.