We had an excellent stay at Bruno and Francesca's apartment in Trastevere. The accommodation was very comfortable for 2 although it clearly can sleep more. Trastevere is a great location with shops very close by and plenty of places to eat within a few minutes walk.
Note that the apartment is on the 4th floor and therefore the use of the lift is essential. As the apartment is surrounded by numerous others be prepared for a little noise - this isn't a downside, just a reflection of being in a city centre location. However, it was quiet at night and we slept soundly.
Although we weren't able to meet Bruno we spoke on the phone a few times. He was very quick to correct a problem with internet access and was most accommodating with leaving our bags on the final day of our stay.
We walked everywhere - all of the must-see city centre sights are within about 20 minutes on foot. We loved nearby Basilica di Santa Maria in Trastevere - the mosaics are incredible.