A really lovely apartment, and we loved our stay in the area. We stayed in Irpini I, which has a garden and is a split level apartment. The garden is especially lovely and well tended by the owners, a nice place to relax outdoors at the end of the day or with a cup of coffee in the morning.
The hosts were responsive when the air conditioning didn't work at the beginning of our stay and got it fixed right away and were always communicative and kind. The woman who checked us in provided tons of excellent recommendations for things to do and try locally as well.
San Lorenzo is a great place for longer stays in Rome, and this apartment is extremely convenient to all the quarter has to offer--restaurants, supermarkets, stores, and public transport are all within easy reach. It's like a small town within the larger city of Rome.