We rent Franziska's appartment in late June. The two bedrooms had air conditioning which was welcome because it was pretty hot outside ! (around 34 degrees). We did not actually meet the owner but were welcome nicely by Grazia. We really loved this bright and elegantly decorated appartment. It is also well located in Trastevere, and only 20 minutes walk from the Vatican and most of the other touristical spots. The Trastevere is a warm, safe and lively area. The only inconvenience we encountered was the noise sometimes very late at night from groups of people coming out from bars and restaurants in the neighbourhood, especially of course on the week-end. There are two bedrooms though, and one was perfectly silent. We nevertheless did really enjoy our stay and we would certainly come back to Franziska' s appartment !