I have not meet Federico, but I was in continuous contact with her frined, Paola. She was very helpful, always ready to give me good tips regarding restaurants, she answered in 3 minutes anytime. We meet Paola' mother when we arrived, and she was extremly cute and helpful and handover the flat in 5 minutes. The flat is really the same what we saw on the pictures. The flat's door immediately takes you to the street - which is a parking place for cars and the flat has no other window, but! For us it was cosy, very clean, nicely designed and sunny, and we found it very relaxing after 8-9 hours walking. Furthermore, we loved the area where the flat was placed, and we never used public transport or taxi to get anywhere. Termini is 15 minutes on foot, Spagna is maximum 45 minutes full with great Roman attractions. Colosseo is 3 minutes on foot!