Great little place to stay. The host is very kind and helpful. We accidentally broke the key in the lock when arriving, and she responded instantly on airbnb and came with an extra key and even gave us some coins to get another one made.
The apartment itself is OK. Quite small, so not ideal to hang out in for too long, but just fine for two people to stay in. There is a courtyard and a decent rooftop as well though, so you can enjoy some food or a coffee there!
Kitchen small but OK, can definitely cook some simple meals.
Location is OK, little outside center but very close to the Vatican.
All in all a good stay and good value for the money!