Definitely recommend, Rosanna is very sweet and provides lots of good local tips. The apartment is such a nice place to stay, just a 15m bus ride away from all major attractions. Lots of good restaurants are walking distance from the apartment too. FYI: It is on the 4th floor and you have to walk upstairs.
P.S. As of 12/10/18, know that you will have to pay 3.5 euro per person per night cash upon arrival for Rome city tax not included in air bnb rate.