We came to Naples on Aug 19, 2013 for two nights before heading out to the Amalfi Coast. It was a seamless process to book with Marco a couple months beforehand and he contacted us a few days prior to our arrival offering to pick us up from the airport (for a fee) since our flight was getting in after dark and it might be hard to find the apartment in a taxi. We were very happy we took him up on his offer. We chatted all the way from the airport to the apartment and he helped us with our luggage. He showed us how to work everything in the apartment and then walked us over to Di Matteo pizza on Via Tribunali to help us order our dinner (margherita pizza and an arancini - it was awesome).
The apartment was very comfortable, clean and well stocked with dishes, cutlery, etc. He had left sheets, pillow cases, a blanket, two bath towels and two hand towels on one of the shelves. We learned the hard way that you shouldn't run the A/C, the water heater (which is on while you shower and stays on for 15 min afterward) AND the hair dryer all at once or you'll blow a fuse. Use only two of those at a time. Luckily, Marco was cleaning his other apartment downstairs at the time and was able to come and show us where the fuse box is (next to the little window in the kitchen). He was very willing to help with whatever we needed and easily reachable by phone or whatsapp (wifi in the apt plus we got a data sim card, 20 euro for 1 gb data for 30 days, on the TIM network). The apartment is in the historic center of Naples and it was really great to walk around locally and see all of the little shops and restaurants. It was easy to walk to Castel Nuovo/the port and the Garibaldi train station. There is a bulletin board just inside the front door with a map and some brochures for local attractions. Marco has been in Naples his whole life so he's a wealth of information as well. We would definitely recommend staying at one of Marco's apartments and would stay here again!