We are a couple and had a 3 nights stay at Jane's flat. we haven't met her , but she was very responsive to my questions by text. her friend Alessandro was very nice, he took good care of us, brought us the keys , gave us some tips for restaurants & places to see, and allowed us to leave our luggage late in the afternoon the last day.
The apartment is well located: walking distance from the main sites in Rome center, close to many buses lines, and to the metro ( 2 stations from Termini station that takes you to the airport in 30 min, very easy) which is quite convenient !
The apartment is as described . If you open the window you can hear the street noises otherwise it is absolutely quiet! the apartment is very well equipped and clean, comfortable, the bed is good, and windows come with roller blinds.
Last but not least, the portable wifi connection device, very small, you can take it with you when having a stroll in Rome, which is a great asset!
I would definitely recommend this apartment for a 4 days stay !