The Harrowed Set is a great, straightforward, and versatile set. It’s great for almost any situation, due to its high resistance to poison, while still maintaining a high physical defense, which often lacks in Church Attire with the same levels of poison resistance.
Weirdly enough, the Afflicted Beggar wears the Harrowed Hood, making him the only other character in the game to do so. In addition, he also wears the Madman Leggings. Both of these attire pieces hint at him being a former Healing Church Hunter and Tomb Prospector.