I stayed at Valentinas flat for four days while I was in Rome. The flat is centrally located right next to the Vatican and it was easy to explore the city from there. There is also several shops and restaurant in close proximity. There also is a bikram yoga place nearby if you want to give that a try.
The flat itself was great. Clean and with a nice little balcony in the bedroom. Valentina was also friendly, easygoing and very helpful. I had a great time there and highly reccomend staying there =)