Awesome read, something you can easily finish in an hour or even less. But the idea the author builds upon is really deep - the very philosophy behind why we want certain things in life, and no matter how much we get, we can never really be satisfied.
The main takeaway I got was this: in this world, we can never, ever be completely satisfied - if we go after that which is material.
The hypothetical experiment with letting a human being decide his entire life in advance - and that leading into a paradox with a truly uncountably infinite number of contradictory options to choose from - like what would your ideal gender be, ideal skin color, ideal place to be born, your status in wealth, in health, in spirituality, in knowing people and being famous - that experiment was my favorite part.
Kudos to the author for really bringing out such an amazing theme in times of such dense materialism!