Apartment building is on a sloped hill about 5-10 minutes walk to Cavour metro. More importantly, we discovered it was 1 minute from the very useful 117 bus stop.
The apartment itself is on the 3rd floor. There are lots of nice restaurants in the area, and the apartment is close to the Colloseum (15 mins walk)
The apartment has high specification amenities with a wonderful airy large lounge/kitchen. The bedrooms are OK size, with plenty of storage. The ensuite bathroom is a little small, but otherwise, no problem.
The bedrooms don't face the road, so there is absolutely no road noise at all. Very peaceful night's sleep, apart from the odd noisy toilet flush.
Rudi lived close by and was helpful with practical info, although less so in terms of tourist information tips. It is not a criticism, but it would have been useful to know about the need to book tourist sites in advance. Also, maybe a few tourist city maps.
It was a great place to stay and would stay there again for sure.