The place is great. The apartment looks very nice and clean and it's 20 minutes walking distance from Trastevere (restaurants and bars), 20-30 minutes to Pantheon, so overall you can walk almost anywhere. We only took a taxi when we went to Vatican, that is 1 hour walking distance.
And least but not last, Isabella is very very nice :). We arrived very late and she waited for us and she helped us with anything we asked for.