We really enjoyed our stay at Christos' rooftop studio. You couldn't ask for a better location. You're right next to all of Gazi's nightlife while also being within walking distance to Monistiraki, Plaka and the Acropolis. The metro station is also very close by with easy access to Piraeus and all of the beaches along the coast. The studio itself is small but very clean, comfortable and well-renovated. The A/C worked well during the hot August days we were there and there was plenty of water-pressure in the shower. The absolute jewel in the crown is the massive private balcony you have all to yourself with an incredible view of Gazi and the mountains beyond. It was a great place to sit with a bottle of wine, listen to music, and enjoy the sun setting over the mountains. You really feel like you're on top of the world and enjoying a "secret" no one else in Athens has access to. I highly recommend staying at Christos' studio and I would definitely stay there again!