Alex is great at communicating and attentive to his guest's needs--I recommend downloading Skype or whatsapp to facilitate communication with host.
His place is super cute. Perfect for a solo traveler such as myself or a couple visiting Rome. Located on the A line of the metro. The apt. Is less than a mile walk from Vatican City.
There's a fresh vegetable and fruit shop right next door and a little super market a 2min. Walk down the street. I recommend La Rustichella restaurant closer to the subway.