The apartment is perfectly located and is really charming, however there are a few disadvantages - in general the apartment is rather small, especially for tall man + very steep stairs + one bedroom has no doors. If you are travelling with friends and need some privacy, it may be embarrassing.
Unfortunately, we did not have a chance to meet Chiara, but her father took care of us. He is very friendly and helpful despite not fluent English. We had some problems with finding the address (there is a very similar street with the same address just around the corner), so a person speaking English could be helpful.
Overall, I can recommend Chiara and her apartment!