Okay. First of all, Chiara is indeed a super-host! She will make your trip better with her hospitality. Giving you your own space, but always available if you need help or assistance. I enjoyed the location very much, just outside the heart of the city, where it is slightly more residential, and quiet but still surrounded by wonderful architecture and scenery. The room is cosy, comfortable, you have your own kitchen area, and coffee machine (with nespresso pods!!)...never had an issue with the wifi or hot water availability. An big upgrade on your average hotel room.
It may be a 15-20min walk to the centre but the better quality food in Trastevere and its surrounding area makes up for this The area is very safe, even late at night, you never feel threatened in the least.
And of course, you are saving a considerable amount, compared to staying in the centre at a hotel, money that can be better spent on food/shopping.
To surmise, highly recommended!