Elias is a great host and was very helpful whenever we had a question. The house and the common area are very well take care off and excellent for kids to run around. We really enjoyed our stay and the comfort of the accomodation, which fits to the descriptions provided. So its ideal if you are looking for a relaxing place with easy access to the beach ( just 5-10 minute walking distance), and good location for exploring the island by car.
You should know, that Kolymbia is a tourist town and does not offer a "Greek" way of daily life. That was ok for us, since we had a car and typically are more the explorer type than just only relaxing at home. Anyhow, we really can recommend Elias and the appartment.