We had a really good time staying at Martina’s place. It is at a really convenient location (100m from Metro) and airy and spacious, if perhaps a little minimalist.
The bed was large and really comfortable: one person wouldn’t disturb the other even if restless. We had the window open and it was pretty quiet too. The Irish pub out the front (the bedroom is at the back) and sirens a little way off meant we did need to use ear plugs (it is very quiet where we normally live and we were there over St Patrick’s day and after a rugby international). Is anywhere really quiet in Rome? In summer I expect the bedroom window would be closed and the aircon on (a different noise of course). The shutters provided a good blackout.
As we self-catered a fair bit, we would have liked a few additions to the kitchen which we have mentioned to Martina. We found two good supermarket with reasonable prices nearby - one up the steps and over the road from the Metro. The other towards the top of Via Urbana on the right (perhaps 5 minutes away). There is a bakery up that way too. But also a waffle place directly below the apartment and a good cafe for cakes next to that (and ice cream round the corner). Lots of pedestrians but very little traffic.
We have a good friend in Rome and he recommended two restaurants that we visited more than once: Dodo at 87 Via dei Serpenti (about 7 minutes walk) and Il Brigantino, 50 Via di S. Martino Ai Monti.
We walked everywhere only using the Metro to leave or go out of town (Ostia Antica - about 40 minutes away on a 1 Euro 50 tube/local railway ticket) - highly recommended and much quieter than the sights in Rome. The Vatican is about 40 minutes away on foot.
So, a few minor reservations but we would strongly recommended nevertheless.