There are a few extra stairs to climb once you get out of the elevator. For us that was not an issue, but for someone with mobility issues it could be. Also the Piazza Bellini is very noisy and we had a hard time sleeping on our last night there. But that is not the establishment's fault, the windows are well insulated.
This small bed and breakfast is very well situated in the Piazza Bellini, which is in the historic center. If you go to Naples for the museums and for sightseeing or the nightlife, then this is the place for you. If you want to get some rest, then Naples is not the right place. It's very noisy and full of life, and all the good and bad things that come with that. The owners of Bell&Buono are young and energetic, they will give you directions to the best places to see the minute you come through the door. The rooms are very very clean (which you will appreciate, believe me), the furnishing is new, the view is great, and although the building is old, so are most buildings in the historic center. For a bed and breakfast, it's quite respectful of one's privacy; we were basically alone most of the time. Make sure you ask all the info you need in the morning, when the owners are there.