I am not really a Science Fiction fan but I was intrigued by the title of this book. It is set in a dystopian world some time in the future. Everyone lives in a giant silo (a hundred storeys high with no lift!) which works as a reasonably efficient organism with each person assigned a specific task. No-one is quite sure what other groups do - the elite are in IT and they seem to have a wider knowledge of what is going on. The silo will only operate if each remains in his or her work-station. If too much knowledge is available and new ideas spread then the whole is in danger of disintegration.
I thoroughly enjoyed listening to this as an audiobook and can well appreciate the large fan following. However, be warned, don't get too attached to some of the early characters as they only last for a few chapters before being replaced by new ones. It is well paced and we are given information bit by bit about what is going on: what is "cleaning"? is there life beyond the silo? who will triumph in the end?
Not being a SciFi fan I do not know how original Wool is or whether it will stand the test of time. But I was drawn into the story - and congratulate the writer on having some really strong female characters.