I loved every minute of my stay at Ernesto's place. He is a great host, a very friendly, helpful anf outgoing person.
The apartment is really big, you may easily not notice how many people are in there. The best thing about this place are the people who visit it: airbnb guests, Ernesto's friends, people connected with the project, in fact you are "never alone".
Staying there you may not need to use public transport as the historic centre is easily reached on foot.
When back in Rome, I'm going to stay here again.
Ernesto, I wish you luck with your project, it is definitely worth succeeding.