For those without time: I would definitely book "Studio 53" again, the appartement is charming and well thought through in every detail, it just let's you forget your busy life.
The longer version: originally I had planned to take some days off from work but sadly had to work while I was at Sonja&Stef's place. This normally destroys my entire vacation feeling but not so at their cozy place, it just helped me to relax and forget that I had worked just minutes ago!
Everything is thought through like the living room that can be converted into the bedroom in a minute. There's a tiny, tiny garden that is just out of the bed/living room door where you can sit under grapes of wine, read a book and totally forget about time itself.
You have a private entrance that also holds the two bikes (both not brand-new as they would most likely not last too long in the streets if they were newer) and enough firewood for the fireplace if you need it. Everything is really closeby, a supermarket is just 1-2 minutes by bike away and there are plenty of restaurants in the area (I'd recommend "Simply Thai" and "Indian Curry House"). It'll take you about 5-10 minutes to the beach and the same time to the city so it's really in a good spot for both sightseeing and relaxing on the beach. If you don't know what to do or where to eat, you'll find a very good guide to everything created by the two at the appartement.
Everything is compact but there is no lack in anything. I really like the minimalistic approach which is perhaps not for someone how prefers a standard appartement.
Sonja is a great host, she responded to messages in minutes and was great fun to meet.