Giovanni's place is a perfect stay when you're visiting Napoli.
The location is the best. It is in the old city and you can walk to all main attractions. Also, it is close to the Central Station, so you can also easily take a train to Napoli surroundings (Pompei, Vesuvius, Amalfi coast). You can also walk to the port (15-20 min), from where you can reach Capri and all the other islands.
The place itself is also great, spacious, and comfortable. The terrace was perfect for us to relax, with a cold beer after a hot day.
I definitely recommend this place!