We stayed for 10 days in Dena's appartment during our holidays on Crete in August. Dena is an amazing and everything regarding our accommodation worked absolutely flawlessly.
The apartment itself is very nice and cozy and has everything you may need for you stay in Rethymnon (towels, crockery, soap and shampoo, laundry detergent and so on).
The location of the appartment is also amazing. The restaurants, stores and the beach are just minutes away and you already feel the Rethymnon charm just by stepping outside the door.
Parking in the old town itself is not possible, since you're not allowed to enter with the car. But we had no problems finding parking spots in the streets nearby (walking distance around 7-10 minutes).
Altogether, we had a good experience with everything regarding the appartment and we would absolutely recommend it.