We had an amazing holiday in Rome and part of its success was definitely due to being able to come home every evening to our cosy, comfortable flat. We stayed for five days and walked everywhere, only taking buses on a couple of occasions and would often walk via St Peter's as it was so close.
Lorenzo was a great host, arranging our transfer from and to the airport and arriving very promptly to remedy a small problem that we had with the hob. He was friendly, welcoming and very happy to answer any questions that we had.
There were four of us on this trip and we found the flat to be plenty big enough - such a bonus to have two bathrooms! - it was well heated, the beds were comfy and, as there is a well stocked supermarket close by, we often cooked.
There were a few small negative things about the flat: the traffic noise (which may be more of a problem in the summer) the size of the second double bed (it's a small double) and the pillows which are rather hard and high (I'd recommend bringing your own if you prefer softer smaller ones)
This flat is definitely somewhere that we would recommend as a place to stay.