Elisabetta was a nice host. She wasn't there to let us in but the cleaning person was there and let us check our bags in early. The place is a small loft right in the heart of Naples. It's a short walk from the train station and we were able to walk around and see everything in almost one day.
There is a history museum there where they keep all the artifacts they found in Pompeii.
I would say do your research on Naples before staying there. We found that it wasn't for us. On sat night Italians party hard, and late into the night. If you like to party this is the place for you. If you want to sleep maybe not so much? We ended up leaving a day early. This had nothing to do with the place, just the town.
If you want to stay in Naples Livia's place is very convenient!