Como Hacerse Rico

The provided review does not offer any specific positive feedback regarding the book's strengths or engaging qualities. It does not highlight aspects such as compelling characters, intricate plots, or beautiful prose that readers might find enjoyable. Therefore, it is not possible to detail any particular elements that were praised or considered successful by the reviewer.

However, the review does imply a notable point of criticism. The comment "He should have taken advice from his hairdresser" suggests a perceived misstep or poor decision within the book. This could relate to an authorial choice in crafting the narrative, a character's actions or development, or a specific plot point that the reviewer felt was ill-conceived or easily avoidable with better judgment. It indicates a sense that a different, perhaps more common-sense, approach would have improved the overall experience.

Given the extremely limited and enigmatic nature of the feedback, it is challenging to provide a comprehensive overall verdict on the book or identify its ideal readership. The review offers no insight into the book's genre, themes, or general tone, making it impossible to determine who might enjoy it or what kind of literary experience it aims to deliver.