Loved Luca's place! It is charming and lovely, in a great neighborhood with many great restaurants and cafes. Bar Lillo and the 404 cafe are right downstairs, offering great coffee, food and drinks, as well as locals to chat with. The terrace is lovely! Everything seemed to be within a 20-25 minute walking distance, or less. It is in a relatively quiet part of the Trastevere, so we slept well at night with all the windows open.
It was around 95 degrees the 4 days we were staying here, and we found the a/c to not work in any perceptible way; this was particularly a challenge, as the sun comes in to the space all afternoon, and we had no escape from the heat. Because, we had specifically chosen this flat based on the a/c listed in the amenities, we were disappointed, but, the charm and location of this space kept our stay special. We would certainly book again, just not in the summer, unless the a/c is upgraded.
Overall, we highly recommend this place.