Simone is a great host, the best I have met. His appartment is not only cosy and nicely decorated but also very convenient and with all facilities you might need. It is very easy to feel comfortable there. Simone has been very helpful, already before our trip, answering all questions and sending tips about Rome. Wifi in the appartment works good. Public transport is very near, you can reach the centre by tram or bus or 12 minutes walk to metro, or even both as in Rome you can connect transports with the same ticket.
Simone's appartment is for sure a recommendation!