Robs place is fantastic, easily accommodating us 3 adults. I love the balcony, and in general it is decorated very nicely.
Beside the apartment there is many local food and drink options. The bus and metro are immediately accessible and its quick to get everywhere central. Taxi home late at night might cost between €10-15 depending where you're coming from.
Also his tour company provides excellent guidance through Romes most famous locations. I particularly enjoyed my Colosseum tour with Luca.
Amy queries were answered very quickly by Rob and those working with him.
I recommend this place highly, for a couple or a few friends or a small family.