Chez Maria was a great apartment in Athens. It is close to the metro. You can also easily walk downtown. The bed, which is actually a sofa bed, is more confortable (very) than many many beds! The apartment is calm and quiet. You will sleep there like a baby. Plus, the hosts were super nice. They answered all our questions (even checked some info regarding possible strike affecting public transport the day we weew leaving). They allowed us to leave our luggage until 8:30PM given that we were flying late.