Mario was a great host. He was readily available on the phone when we had questions and solved a minor problem we had in a quick and generous way. We only stayed one night at Mario's place, but it had a good feel: it is clearly well looked after (it was very clean and didn't have the impersonal feel that some air bnb's have!), was comfortable, and very centrally located - it would certainly be possible to walk around the city without public transport from his flat. It was a little noisy on the street at night, as you would expect in a central area, but it didn't bother us too much and my 21m old son didn't wake. The cotbed that Mario provided seemed really comfortable to my son, who had a great night's sleep.