I had also heard good things about it! I‘m not even halfway through, but there were some definite thoughts in there that I needed at the moment. It does lean very heavily towards spirituality, so if that isn‘t your thing, be warned. The basic premise is that there is a Great Creator/God/spiritual force that you can tap into. I haven‘t really done the exercises in it, so far I‘ m just listening (and writing pages every morning is not feasible for me right now). A lot of them do sound very helpful though.
Let me know if you have any more questions!