Serena's place was awesome. Whoever designed it did an amazing job at utilizing every inch of space. It is modern with a a historical touch and very comfortable for a couple. The location is quiet as it is right behind a government building with police around (couldn't have felt safer) yet it is a less than 5 min walk to the metro.
If you are into walking around and taking the city in (which you totally should) then this location is great. We walked to the Pantheon, Fontana di Trevi, Spanish steps, many dinner locations, all under 30mins.
Serena was very responsive and answered a bunch of questions I had prior to arriving. She also left us itineraries, a lovely book about the apartment and nearby eateries and tourist destinations, as well as a lovely gift (thanks Serena).
When we return to Rome, we will definitely stay with Serena again (if its available).
All the best,
Kendall