Georgios's place is a lovely, newly renovated space with a roof deck (!) and jacuzzi -- and located a short walk from most everything you'll want to do in downtown Chania. As a result of its location, parking can be a challenge, but we had a relatively easy time of it during our stay.
Our host was Manolis, Georgios's friend, whose local recommendations ended up as highlights of our time in Crete. He was also very quick to respond through the app, which was a great help when the hike we had scheduled was cancelled and we had to find a plan B.
As a traveller's note, the stairs up to the apartment and the roof are narrow and vertical -- like a Dutch staircase -- so make sure you're comfortable carrying the bulk / weight of the luggage you're bringing with you.