B&B Cavour Museum House is excellently located, as it is very close to the Piazza Cavour metro stop (which connects directly to Napoli centrale), and it is very easy to reach Napoli centro storico by walking from the apartment.
The apartment was nice and felt spacious, and was clean and tidy, with everything we needed for our stay. The refreshments left for our arrival were a thoughtful touch.
The hot-tub is a little confusing to operate; and there isn't an actual pool on the premises, and breakfast did not seem to be included, both of which the listing had suggested.
Be aware that if you do not speak any Italian, there might be some communication difficulties as it didn't seem like any of the hosts we interacted with spoke much English.
Overall, our hosts were very warm and welcoming, helpful and communicative, and considering it's location and all other aspects of our stay in the apartment, it was very good value for money.