and concludes that "it" is in fact Suzy. She is known for dismissing clients, instructing them to lose weight, and she is equally direct about telling people to change everything from their hair to their teeth.
The author states that "it" is indeed Suzy. She is recognized for her blunt manner of dealing with clients, advising them to lose weight, and offering straightforward instructions on altering various aspects of their appearance, including their hair and teeth.