This place was literally like my second home for a bit more than half a month. It was cozy, well decorated, well equipped, well situated (four metro station and you are in Athens center) and I never missed anything. The bed is comfy, the sofa is comfy, it has a big patio, lot of natural lights and all the amenities you need in a daily basis. Plus, it has an elevator! Ioannis is someone who's gonna go above and beyond for making you feel comfortable and happy in his place. Check-in is easy too! I don't see any good reason to stay anywhere else than there during your next trip to Athens. Give it a try!