Great location in Trastevere. The room is small but that is clear from the description. It can get hot but there is a small fan available, so all good. One night there were people in the building making lots of noise- but they might have been other airbnb’ers.
In terms of check in, I recommend you ask Anastasia in advance regarding check in time as info on the ad might be a bit confusing (it says check in from 2-4pm but that doesn’t mean you can choose when, as I had understood).
Anastasia seems nice and available for any support.