The apartment is very cozy and hospitable, equipped with everything you need for a short stay(we stayed for a week). Perfect size for one person or a couple. To underline, the bed is extremely comfortable.
Very nice location too, quite, with grocery stores and nice bars near by. 2 minutes to the metro (or train station) that directly connects to Pompei, which we feel very blessed, after a tour for the whole day we can walk 2 minutes and return home.
Besides that, Mariano is a very nice host, full of enthusiasm for hospitality. He sent us his list for nice restaurants within walking distance and many recommendations for things to visit in the city.
I highly recommend this apartment. If I come back to Naples, I will still want to stay in this apartment!