The book itself has a good style and you will receive many additional content. You can make money with spending just a few minutes a day but won't receive it back within minutes (basically).
In fact, this is no unseen method for me. If you are not able to invest additional money after buying it, it will take much time to make valuable earnings.
Also there is no guarantee that you will get you money back or make high earnings daily.
But, based on recommendations in this book you will be able to build a cash flow with your investment as base once the stars are good and save your earnings. At some point, if you don't cash out every single dollar, you will make money from your earnings instead of your initial investment.
Overall rating: 7/10 => good contact, very well written, good examples.
Cons are: investment needed; you may or may not make money with that; no guarantee how long it will take until your 5min of work make the money.