Unfortunately I couldn't come with my family to Hans and Saskias apartment but they've been super cooperative and very friendly when I told them my plans changed and helped me with figuring out everything.
The apartment was clean and tidy and the area safe and close to the beach. Only "negative" points are there's a night club near by which is a bit noisy and there's no aircon in the apartment (would have been a plus, but was managble without as well ;))
Would stay there again!