The apartment is lovely and is exactly as pictured in the listing. Lorenzo's friends who met me there were warm and welcoming. Maps, coffee, tea, sugar, oil, butter, yoghurt, soap, laundry powder and many other basics were all provided and all the ins and outs of the apartment explained. They had even made me a little plate of sandwiches with an Australian flag, which was a lovely touch.
The apartment is an easy walk from Rome's centre across Ponte Sisto. Trastevere is a lively area at night, with bars, restaurants and buskers everywhere. I enjoyed this but it may not suit people who need absolute silence to sleep ( although closing the windows blocked out most of the noise).
I would definitely stay here again.