Alessandro was an awesome host very friendly and accommodating (his excellent Engish is an added bonus). His apartment is within a short walking distance from the subway station (Rei di Roma) which, in turn, is 3 subway stops away from Roma Termini subway hub where intercity train terminal is located. Though the place is a little distance away from the main attractions, it's easy to find and to get to the old town area. I highly recommend Alessandro and his place.