First, the apartment is in a great location of Naples that allows you to traverse the city on foot. Truly authentic with the 'intense' feel you get from roaming the side streets when seeing what Naples has to offer. Marina was a very nice and communicative host.
The apartment itself is nice and small, with a good bathroom, nice loft and nice little kitchen. It's probably 350 sf or so and located inside of a building in the 4th floor with an elevator. A few caveats that I believe marina was planing to fix prior to the next stay. First, the front door key to the small lock (door) didn't work once for me. I had to use a different key and unlock the whole entrance apparatus every time, prompting neighbors to question what was going on twice. Second, the shower door was broken and allowed water to get everywhere.
Fix those and this is a place I'd recommend.