We had a great stay at Giannis’ place. Getting to the penthouse from the airport was very easy. We took the train to Monastiraki and then walked half a mile, though I believe there’s a bus you can take from Monastiraki if you’d like to walk less. Checking in was easy as well. Once you’re in, the penthouse is clean, spacious, and has all the basic amenities, including a few snacks. The shower has good water pressure and temperature, all the furniture is comfortable to relax on, and the air conditioning works. As for the location, you’ll be within walking distance of many great restaurants and one mile north of the Acropolis, which is pretty convenient. And the view from the top really is beautiful. I would recommend staying at Giannis’ place for a visit to Athens.