Unlike most of the other reviewers I loved the character of Hannah. She is socially awkward, prickly, obsessive, grudge-bearing, sometimes petulant, and comes across as slightly Aspergers the way she misreads so many situations and other people's motives.
I think criticising the novel because of Hannah's faults misses the point. Sittenfeld has knowingly created a realistic, flawed character, not a cardboard cut-out heroine. She grows and changes throughout the novel, learns to be more self-aware, but is still recognisably the same person. The plot is slightly episodic rather than a tidy linear narrative with all the loose ends tied up- but Sittenfield manages to gets away with it, offering up a slice of life rather than a strongly plotted novel. Ok, I'm biased. Read it as a promise of what's to come in terms of the writer's outstanding talent. What Hannah has in common with Lee from Prep is her angst and uncertainty and her feelings of being an outsider and uncomfortable in her own skin. I think Sittenfeld captures those emotions and that interior voice really well. She conveys with great honesty how painful and difficult the transition to adulthood can be.
It's not as fresh as Prep or as considered as American Wife, I'm guessing Sittenfeld is probably dissatisfied with it herself now she has reached maturity as a novelist, but it's still very good indeed: well-written and engaging. I would read anything by Curtis Sittenfeld and would definitely recommend her, though I suspect she is more appealing to women (mind you, that seems to be the case with most women writers!)If you haven't come across her, start with Prep and then American Wife. After that you may forgive her anything.