Parga was a new town for me, I had never heard about it before we stopped for a one day visit. But what a surprise, walking around by the beach and pier I think it was one of the most scenic little towns in Greece I've seen so far. Ok, some streets are a bit touristic with the ordinary tourist shops, but the view of the small islands (that you easily can swim out to), the cliffs and houses was a real pleasant surprise.
I would probably not stay there for a full week, but it's definitely worth a visit if you're traveling around the area!