I stayed at Cristiana's appartment for two nights with two friends. The appartment is really big and it is in a great location. Nearby nice restaurants and the main street. Cristiana is really nice and she offered to take us to the airport the last day. The only "buts" I would say is that the appartment is in a third floor without a lift, but if you don't have big luggage it is not a problem. There is no air conditioning, so if you go during the summer make sure to have a fan or something. Anyways, I think it is a good place to stay in Napoli :)