Although we didn't meet Rola & Claudio in person, they gave us a very detailed description of what we had to do to get in the apartment. The apartement is very clean and actually everything you need is there (even towels, a washing machine, coffee maker,...). For such a small space, it looked like an advertissement for IKEA (how to get as much as possible as efficient as possible in a small place ;) ). Very well done!
It is located a bit out of the city center but in a walk of about 30min you easily get to the Trevi Fountain and about an hour to Vatican city. Unless you take the bus, which are numerous all around Rome!