This book can best be explained by describing the author, Jen Lancaster. Considering the fact that the readers are going to be in her head the entire time, it's important to note what that entails. Jen's style of humor is heavy on the sarcasm and snark. She sounds like the "friend" that would talk about all her other friends behind their backs in an almost cruel way, but she would get away with it because it can be passed off as a joke.
The author isn't very compassionate towards her fellow human beings. A lot of times during reading, I would have to take a break because her view of the world is so short-sighted. It's almost like her world is full of 2-D people whose only feelings are the obvious ones. It's all like a cartoon. It feels like everyone in the world is just there to be judged or bring her pleasure.
Actually, come to think of it, I think she's a good example of Narcissistic Personality Disorder. She is "unwilling or unable to recognize or identify with the feelings and needs of others". An example of this would be towards the end of the book when she met a homeless woman who was suffering from the effects of long term drug addiction (she was shivering in the heat). The woman came over to her and complimented her on her towel. It was a shabby one, but I think the woman thought it might keep her warm. Jen got angry at the sickly woman for approaching her, also because she might have been late to swim laps. Lancaster interrogated the woman, not because she wanted answers, but to shame the lady when she said "Number one, I'm not going to give you dime so you can continue slowly killing yourself, and number two, even I were to take pity on you--which I'm not--I'm wearing a bathing suit and running shorts. Where exactly do you think I'd be storing money for Junkies fund? In the coin purse up my ass?". She leaves the woman stammering, unable to answer.
If you're thinking about buying this one, read about NPD so you know what you're in for. "Rarely acknowledges mistakes and/or imperfections", she mentions in the title that she's a narcissist, but it goes far beyond that.
As for the book in general, only a third of it can really be considered about weight loss. Most of it are just her memories and conversations with people within the same time frame (i.e: How she hired maid service, talking about watching lots of reality tv shows). I suggest skimming through those parts, because it gets tedious. Also, the only person mentioned in the book I really liked was her trainer Barbie. Barbie was like breath of fresh, non-snarky, air. It's a shame she wasn't mentioned more often. Everyone else just had neutral attitudes, despite Jen's constant fault-finding. It seems like Jen is the only toxic person in Jen's life, which is good for her I guess. Although, probably not so good for those around her. All in all, there are some points of humor and she tries to take the edge off of her sometimes cruel statements by turning them into jokes (i.e: Miss Melanoma), but the book is just energy draining. There are better weight-loss memoirs out there, without the nasty aftertaste.