Suite Toledo is a very nice, comfy, fully-equipped suite, with an amazing terrace if you want to take a break from the city and still enjoy the sun. The location is absolutely perfect: just between the spanish quarters and the historical center, right on via Toledo, with via Pignasecca (open air market) around the corner. Metro lines 1 (Toledo) and 2 (Montesanto) are 2mins away, as is the funicular to Vomero.
Vincenzo was very reactive and very nice, giving us plenty of advice on where to go, eat and all other things.
Clearly the place to stay in Naples!