We stayed 10 days in this appartment, and we loved it! The location is great, it is really quiet in the small ancient streets, while the market and the shops and restaurants are nearby. You can have a nice breakfast and do your shopping at Campo de Fiori. We walked everywhere, Vatican, Villa Borghese, Capitol museum, Forum Romanum, Colosseum, Pantheon, Spanish Steps. Only to Ostia Antica and Via Appia Antica we took a bus/train.
Giulio wasn't there but arranged a taxi for us to and from the airport, worked great. It was comfortable, clean, charming and lots of space. Thanks Giulio!