I have just stayed here with my boyfriend for 4 nights, and I couldn't recommend it enough. It was perfect for what we were looking for; close to the city centre (7-10 min walk to the coliseum), very close the the metro and termini station, a quiet neighbourhood and it felt very secure.
Paola was a very helpful host and organised our transfer from the airport, which was very handy because we didn't really know where anywhere was in Rome! She also told us everywhere that we could visit, and checked how we were getting on and if there was anything she could do for us.
The flat was lovely, modern and sleek. It had everything you could need and was very clean and tidy. Next time we are in Rome I will definitely be choosing Paola's place again :)