I've had a great time at Federico & Concetta's place. The check-in went smoothly, the communication was great, and the place was quite something. I do believe though that the ad is an understatement in that the place is way better in person. It's centrally located and it's got one of the best views of Napoli (and of Mount Vesuvius, Capri, Positano and Sorrento). Totally worth the strain of walking up (and down afterwards) the hill with a suitcase. I highly recommend their place. Pretty sure will make your stay (just like it did mine) in Napoli very memorable.