I just read this book yesterday and I agree with your review. The one sentence description of this book should be: The author is Mr Money Mustache Lite.
Some things bothered me a lot, like how he started off the entertainment chapter saying how he was flipping through crappy cable channels and finally turned it off and just read a book. Then he was so happy about switching cable companies and saving like $80 per month because of it. Why didn't you just cancel it all together when you were just talking about how crappy the cable TV was!?!?!!
I think it is a good start for a lot of people to read this book, but to be a true badass you need to cut stupid spending on MMM levels.