Staying at Effie's apartment was a top experience for us, we were amazed by the hospitality and responsiveness to all our enquiries and requests. The apartment is very clean and had all the necessary amenities one might need.
The location of the apartment was quite good as well, it's not in the city, but it's close and the placement was actually better for us, since we rented a car and could therefore avoid the city traffic when traveling around the island. The mini market and bakery at the ground floor of the building were quite convenient, while for more serious shopping there was a Lidl supermarket close by. There is also a tourist attraction at walking distance, as well as a trendy cafe that we enjoyed going to a couple of times, mostly for the amazing view.
All in all, I would have to struggle to find any faults with this location, the only minor one being that you have to sleep with the windows closed, as the main street is close by and the scooters can get pretty loud at night.
I would highly recommend this place for your stay at Chania.