We were late due to a delayed flight and messy bus connections in Rome. So we never met Cristina. Instead, her brother checked us in, which was also good.
He instructed us in the apartment, and showed us shops, restaurants and supermarkets in the area of the apartment. Very helpful.
The place itself was neat, tidy and clean. A little too small for a group of 4, but if you plan on being outside all day anyway, it's okay. 1 Queen size bed in the bedroom and 1 retractable sleeping couch in the kitchen/living room (it's one room).
The fan on the ceiling was a bit concerning. When spinning, the whole installment was moving because something was loose, so you were constantly scared it'll fall off. So we couldn't use it much - which is bad in 34°C.
All in all, apartment is good value for money and Cristina and her brother are nice people. If you plan on moving outside all day and only sleep in the apartment, then it's good. :)