We stayed with Carlo in May of 2022. Carlo is a great host, and made the check in process easy. The unit is in a pretty quiet residential area, so not too touristy, but also not too far of a walk from the attractions of lower Trastevere
The unit is on a bit of hill, so there are stairs involved in getting to an from the place from Central Rome attractions, but certainly not too difficult to manage. There is also a bus stop not too far away and a taxi stand right down the street.