Overall, I liked it. I think what I struggled with, in starting the book, is that I was focussed on the idea of possessions as objects (due to the idea of dematerializing), rather than the larger question of the power behind possessions. Once I realized that it was about power and related emotions, for example anxiety and fear, I enjoyed it much more.
It is a sweeping, rapid run through many many ideas. I would probably compare it more to Alain Botton's Status Anxiety than a traditional de-object-your-life type of book. For that reason, I think it is well worth the read.
I would say that the writing was such, or perhaps it was the organization of the book, that made it difficult for me to feel as if I could articulate an argument coming from the author. But nevertheless, well worth a quick skim.