Four of us stayed in the flat and there was plenty of space. The main bedroom downstairs is exceptional, with great AC and a nice and roomy bathroom. The upstairs ceilings are a bit low (so beware if you are on the taller side!) but the bed was very cozy. The kitchen was well equipped, and the living room was a great place to relax and have dinner. There was only one set of keys, which could cause some trouble if you are more than one or two people and want to do separate activities during the day. The flat was in a wonderful and accessible area, a perfect base to explore Naples and the surrounding towns :-)