Horrible story.
It didn't take more than a few pages to realize that Moira was dosing Terry with massive amounts of estrogen and Spironolactone in his coffee to force a cisgender man to grow breasts. The story went from cruel to sadistic. Had this happened in real-life, Terry would have had a stroke or the gender dysphoria would have driven him to suicide.
I normally love Daring Diane's stories, which feature positive supporting girls or women who help a boy achieve full potential and happiness by being a girl. This book was about destroying the life of someone who had trained hard, worked hard for years, and had finally started to achieve success, only to have it destroyed by a vindictive coworker.
At no point do we see an awakening of a transgender girl, or even a happy crossdresser. Instead, we see the victim systematically humiliated, exploited, punished, and stripped of dignity.
This book might be a fantasy for a woman who wants to take a shortcut to the executive suite, but in reality, it's a series of criminal acts that would destroy someone's career, possibly get them killed, and result in criminal charges for Moira.