Our stay at Mattia's flat was just wonderful. While in an older building, the unit is just perfect: it has been upped and renovated, including new appliances, and has the added bonus of great natural light and a spacious and comfortable balcony.
The flat is located just a couple of blocks from central public transport (both the metro and the tram) with lines taking you all the way to the Trastevere for a visit to the Vatican, or just a few stops to the Colosseo or even Termini station, two stops away. The neighbourhood is complete with everything from local restaurants to convenience stores and a pharmacy. Considering you're a close 15 min walk to the Colosseo, the pricing is just right on, too.
And, most importantly, Mattia was just the best host: he was super communicative from the moment I booked the place to the time I arrived, and throughout our stay, not only providing super helpful tips on what to do and when!
I definitely recommend his home!