Willian's place was fantastic, and completely exceeded expectations! It's in a great part of town close to the Acropolis and Plaka (about a 10-15 minute walk), the apartment itself is gorgeous, clean, and ultra-modern, and there's a balcony with a great view of the Parthenon. Added bonuses: Willian is around a fair bit and was lovely and willing to give us tips for exploring Athens and the Greek islands, and he has two beautiful cats. Make sure to take his restaurant recommendations -- a restaurant called To Trikyklo around the corner gave us some of the best meals I've ever had. Recommended without a doubt -- you won't find a better place to stay in Athens.