Reading "Crucial Conversations" is fun - for the most part. Some of the anecdotes, some real-life examples are quite eye-opening and frankly should be actively taught in schools and colleges. A few rundowns of how even simple conversations can go haywire and ruin professional and personal relationships beyond repair do make you stop and rethink your way of engaging and conversing. The authors have clearly done an extensive research and they have drilled it down to a bunch of nice-sounding "principles".
But with all being said and done, "Crucial Conversations" seriously lacks editing. There are large portions of the book where essentially the same points are repeated and nothing new is put forth. This did cause me to essentially lose interest about halfway and it was an effort to pick it up again and finish it. The first 25% and the last 25% of the book basically has about 99% of the important points I felt.
Still, definitely a 3/5.