Manolis is a great hos, he was very responsive over the emails before we arrived and over the phone when we were in Athens. Our arrival was delayed, so he was waiting for us after midnight until we arrived.
The apartment is very cosy, has very pleasant ambiance, clean, has literally everything.
The location is pretty good, the buses are available, and its some 15-20 mins walk to Syntagma square. Overall, it was very nice, highly recommend.