Reading someone's stream of consciousness can be disturbing and exciting - you never quite know what they will say next. Reading Kevin Smith's stream of conscious is exciting, disturbing (at times) and grossly hilarious.
The Collected writings of Kevin Smith also provides an insight into how movies are made in a far more interesting read than most this-is-how-we-make-a-movie articles you've probably already read. It is his focus on the smaller details that make his writing so interesting and often humorous.
The love for his wife, kid, and Ben Affleck that he continually expresses is... refreshing; especially after reading about his bowel movements.
Overall it is an exceptionally enjoyable read about not too much which is always good on your way too and from work when you just can't be bothered thinking.