I couldn't recommend this place more. 6 out of 5 stars, easily. Attilio is an incredibly gracious host, and will give you step-by-step directions to get to his apartment from anywhere in Rome. Once there, he sits you down with a map of the city and recommends his opinion of the best places to go. Some of them are well-known to all tourists, and some of them are lesser-known places that won't be crawling with tourists. He also gives fantastic recommendations for dining and gelato, so I would definitely take him up on what he says.
The apartment is very clean, spacious, and you have your own private bathroom so have all the privacy you need. You will also wake up every morning to a breakfast graciously provided by Attilio. He will also help you with whatever random things you might need help with, such as calling for a taxi or finding an internet cafe.
Overall, an amazing experience and I would go back in a heartbeat if I could.