Steven Pinker can be insufferable at times, but I think I must grant that this book had a net positive effect on my writing. I appreciate it and do recommend others to read it once or twice. The examples of good writing are instructive if not only pleasurable to read. The counter-arguments to other writing style-guides and grammar police are very constructive.
This book is best consumed in written form. Sections that speak of sentences as trees are harder to visualize by description alone; consulting the accompanying PDF just isn't practical. The sections on punctuation were a bit of a hard listen as well.