Location - amazing. Right in the centre of Rome with everything in walking distance - the main attraction of this property. Vatican City ~20 mins to the West, Colosseum et al ~20 mins to the east, Patheon et al ~5-10 mins north.
Cleanliness - very good. It was quite an old stone building so naturally got a little dusty by the end of our stay but on arrival was as clean as you would generally hope for, with no issues, nothing unclean spotted.
Property - good. It generally looks like the photos show it to be but perhaps a bit smaller. The bathroom/shower especially are quite small but the facilities were all good and the furniture was nice too. Heating is on a timer and only on in the morning and evening so can get cold in the afternoon/late night in the winter.
Host - brilliant. Received detailed video instructions the week before I arrived with how to find the property and self-check-in. Before and throughout my stay, the host was responsive by answering my questions within minutes.