We had a great 3 nights at Daniele's apartment. Antonio, his Dad, was really nice. He was happy to share the kitchen wth us, and we had our own seperate toilet/ shower room. If you like 100+ year old architecture, this is fantastic building, with external walls about 800mm thick, and huge wooden doors. Great central position in the old part of Naples with so many things within walking distance. Train stations from Rome, and to Pompeii about 20 minutes walk. We would happily recommend staying here.
If you stay here, make sure tou go to Piazzetta Nilo/ Via San Biagio Dei Lebrai at least one night, especially Saturday night. It's about 10 minutes walk, and is such a brilliant place just to have a drink, something to eat and watch the crazy Italian world go by.