Ciao,

we stayed at Olga's just for one night. I'd definitely recommend! She's very nice and trustful, her place with everything you need and well located, in the center but calm and more like real life. Nice restaurants around the corner, though (even vegan, which was great for me).
Se doesn't speak English, but if you have a little understanding of any Roman language you can understand her and the other way round she understands some English words.