Host was very welcoming, he gave us instuctions how to arrive from the airport (just use bus 520 from Ciampino airport, get out at Cinacitta metro station (it is also last bus station) and from there use metro A to Furio Camilo, direction Battistini). He was also kind to answer other questions too.
Room was normal size, It was clean and apartment is on good location (well connected to city center with metro).
We recommend this place for your stay in Rome, we spent 5 nights here. :)