Great location, you can go everywhere by foot. Both checkin and checkout were extremely smooth, Manos was very flexible and responsive. I arrived too early in the morning but he made sure that the apartment is ready. Also, the apartment was very well equipped (even had a sunscreen) which was impressive! I highly recommend this place for your stay in Heraklio.
Ps: keep in mind that there are several stairs (both to the apartment and the bed) so this place is not accessible for older people, people who are scared of heights or people with (dis)abilities.