Five and a half hours is a generous length for the subject, enough to cover symptoms, options and the wider adjustment without becoming a clinical reference. Hearing it in Maria Ian’s own voice matters here more than in most genres, since a great deal of what makes this kind of book useful is the sense of being spoken to rather than instructed.
No listener verdicts have been recorded yet, so there is no consensus to report, encouraging or otherwise. That makes the sample the sensible first step, particularly if you want to check the tone before settling in for the full stretch.
Everything available is set out below.