Pros: for some injuries, spinal adjustment works. Tend to be interested in alternative medicine and prevention. Getting the spine and neck cracked often feels good.
Cons: expensive. They often promise far more results than they give.
Relief of pain from a chiropractor is fantastic. It might be from an adjustment or more extensive treatment but it feels great! You can feel the results instantly. You can stand up straight! The treatments though are sometimes in a large room with other patients present. And you must return for several treatments in a row. Can be costly.