The apartment of Federico is very comfortable and clean with a warm atmosphere. Everything you might need is available, enough space for clothes and luggage in the bedrooms, fully equipped kitchen, coffeecups for the coffeemaker and soaptablets for the dishwasher included. Unfortunately it wasn't possible to read one of the interesting architectural books since the bookcase was locked.
Since the apartment is in the middle of Trastevere, which is the best place to stay in Rome, you'll have to accept some streetnoise. Noise is caused by people (mostly tourists who don't realize this is also an area where people do live and sleep) passing by and once in a while the garbage collector. But with the windows closed (for fresh air you can open the doors of the patio balcony at the backside), and earplugs in we slept very well.
We were welcomed by Federico, a bottle of red wine and chocolates waiting for us and he provided us with all the information we asked for.
One of the best Airbnb experiences I had so I can strongly recommend Federico's place!