Elisabetta is a real sweetheart in her 60s. She studied Fine Art and is a painter and also sings in an opera choral group. A very interesting person.
Her flat is in the Campo di Marte neighborhood, very close to the soccer stadium. It is off the beaten track touristwise but quiet and safe. Be advised that it is a windey 15-20 minute bus ride to the Train Station/Center on the #11 bus. The neighborhood is not touristy and there is only one restaurant near (Osteria Semolina) but it is moderately priced and VERY good.
As a host, Elisabetta is very good and very accommodating. Ask nice and she will let you use her washing machine. A real plus as we all know.