I read the books, never been to Sweden, but the series brings me there and deepen my understanding of Wallander personae. In these films, he is not as dark as he is an introvert (which can be misleading). In the books we know that he is in his head a lot, his long drives and nights. The series illustrate well his personality. Moreover, the series shows us, more than the books, the difficulties of his environment with these traits and how worrisome it becomes for them.
Just loved it.