This program was created for people who wish to improve their selling skills from the comfort of their home. The application gives you access to a wide range of video tutorials presented by Skip Miller, dozens of flashcards, and many quizzes to test what you've learned.
The entire study material is nicely organized into chapters, each with an individual set of video tutorials, quizzes, flashcards, and text presentations. An important advantage is that it keeps track of your progress. To be more exact, it notes which tutorials you watched, quizzes you completed, etc.
Furthermore, if you create a personal account within the program's interface, the developers can monitor your progress and provide you with suggestions to help you improve your selling skills.
Once you complete your study and quizzes, you will receive a certification which you can use when applying for a sales job. Hence, unlike other sales teaching or training tools, this program actually helps you improve your selling skills and get your dream job.
With that being said, I'd say it's worth installing this app on your Mac if you wish to improve or put your selling skills to the test.