We had the most pleasant stay at Marina's place in June 2014. Apart from the fact that the apartment is squicky clean, recebtly renovated and nicely decorated, Marina and her husband provided us with all sorts of useful tips about Rome. I really enjoye the very Italian breakfast that she served us to. The apartment is locate in a residential looking building with interior garden and such but it is very close to the Colosseum - perhaps 15 min walking. The only downside is that the apartment is slightly dark; however, this cand be a real treat in the summer as it won't get extra hot. Totally recommend this place for when you are visiting Rome!