I absolutely loved this place. The only potential downside is that there isn't a window you can fully open, but this was clear from the pictures and easily solved by opening the door and venting in the early morning. Although there's no aircon, it wasn't hot as there is a good fan and a dehumidifier.
The apartment istself is small, but totally adorable and equipped with everything you may need (wifi, fridge, microwave, cooking utensils...). The bed was comfortable and the nights very quiet. I slept like a baby.
The location is actually perfect as it's away from the crowds, but there's a bus stop near the building. It takes some 15 minutes to get to the city center.
Rifredi station is within walking distance, which is particularly useful for any day trips involving trains. There is also a Lidl nearby, so you can make your own breakfast and/or dinner.
As for Alessandra, she is a wonderful host. It was very easy to arrange everything. Grazie, Alessandra!