I stayed at Kougis' place with 3 other adults for 3 nights. Although he warned us that the space was small, it was definitely liveable and only a little cramped.
The check-in process was painless and Kougis checks in on you frequently (via message) to ensure everything is ok.
The apartment is done beautifully and modern. There are lots of thoughtful touches such as welcoming sherry, a list of instructions and a guide book/map to help you find what you need in Heraklion.
We thoroughly enjoyed our stay there. Thanks for hosting us.