Rosa's place was beautifully decorated and much bigger than I expected from the pictures. She provided cheat sheets on good restaurants, which I was really impressed with, as well as lots of tips on where to go. She always responded very quickly when I had questions. The location is really convenient, close to Trastevere and lots of good restaurants in that area, but also walkable to the typical tourist spots. The only concern is that the water pressure is quite low so it was difficult to wash hair, but I'm not sure if this is under Rosa's control or the city's.