JW's are a restorationist religious movement that has over time become an organization that centers it's authority on a theology of legalism.
During it's history it eliminated all ceremony and ritual from the church in favor of rules and codes of conduct. In the process, this destroys the self worth of the individual member. The result - which we can see for ourselves - is people (unfulfilled, depressed, anxious, stressed) who work hard every day to control their own behavior (and thoughts) by complying with the rules of religious legalism.