I'm biased because I know the author personally and because I wrote the introduction to the book. But I know the author because I became a devoted fan of her writing. It's not just that she's hysterically funny, but that her writing is clear and sharp. Her sentences snap, crackle and pop - no, wait, that's her breakfast. She knows how to set up her laughs for maximum effect. In a previous life, she was probably a stand-up coomedienne, and I know first-hand that it is not a good idea to heckle her.
Bottom line: Read this book. You need the laughs. It's as simple as that. You'll be glad you did.