The apartment is nice and clean, centrally located in Kissamos, 10 mins walk from beaches and beach front restaurants with a good selection of Greek and Cretan foods. Claire is super responsive, and her brother Adonis works nearby and ready to help or give you ideas.
Plaka beach is great for relaxing - calm waves, clear water, great restaurants right on the beach. We especially liked Maria Beach restaurant (on Plaka beach) for a combination of great service and good food, and nice sandy beach (we came ready with beach shoes for gravel beach, but ended up not using them because the sand was great).
Kissamos itself is located halfway from Chania and a few famous beaches (e.g. Balis, Phalasarna) with breathtaking views. Chania is definitely worth a visit for shopping and great food. Phalasarna is definitely worth a visit to check the fantastic views. The beach service is more geared for the younger crowds but may be less comfortable or economical in terms of service or relaxation quality for families.