The location is excellent, very close to the trevi fountain as described and within walking distance of a metro station (Barberini is 5 mins walk) to get to major areas of the city. We never met the hosts but the keys were easy to get from a lock box just outside the door with a combination they imessaged through. They were very flexible with our dates, allowing us to arrive one day earlier when our travel plans changed slightly a couple of days before we were due to arrive. The house is spacious and pleasant to stay in. The hosts left us a portable wifi device with 20GB of data for our use which was greatly appreciated!