It is a really cozy apartment, located near a metro stop that is only 2 stops away from the Syntagma square. It's in a great neighbourhood, with plenty of cafes, bars and breakfast places to choose from.
The apartment and the bathroom are a bit on the smaller side, but for our 3-day stay, it was a perfect fit.
Miffy was a good host, who almost immediately answered all of our questions, and was really helpful.
I would definitely recommend and stay there again!