Very nice room with everything needed in it: large bedroom and bathroom, and a small space to cook (with all the necessary). The room was clean and nicely decorated.
I stayed for a month and a half and it was perfect for me. But I think it also may be great for short stays in Rome.
Valentina, the landlord is a nice person with good advices on Rome, and especially on the neighbourhood (which is lovely by the way).
Regarding the location, the appartment is well connected by transports: within half an hour, you are in the historical center of Rome by tram (line 8) or bus (Line H for example), and within 15/20 min you can reach the Vatican by bus (line 982). Then, even though you are not in the very center of the city, it is totally feasible by transports.
The neighbourhood is lovely, with a lot of small shops, pastry shops, restaurants, and a lovely park just nearby (villa Doria Pamphilj).
I strongly recommend this appartment for a stay in Rome!