OK, OK, so in the interests of full literary disclosure (plus I did say I would be the first to admit if I ended up liking the book), this is what happened.
Right around page 100, I couldn't stand the drivel that was Twilight anymore and resolved to chuck this godawful book. But, my rampant curiosity still annoyingly unsatisfied, I flipped to the last page to read the ending...and it made me even more curious, wanting to find out how that ending came about. So I flipped back.
And up until page 200, it truly was awful. All about how Bella would wake up, look at the rain, brush her teeth, go to school, stare at Edward, come home, go to bed. It was like the most mundane episode of "24" I could think of. But then...but then...! After page 300, things got really good. Really good. The book did a total 180 degrees on me - action, adventure, tension, chases, adrenaline, heart-stopping chapters - all exploded out of the pages. It was like a whole different writer all of a sudden (or a whole different, better editor, more like). And was it some kind of sign that the climactic scene occurred inside a ballet studio?
In short, I was hooked. I was so hooked, in fact, that as soon as I finished Twilight 0n Sunday, I rushed to Borders in a frenzy to buy book 2 (New Moon).
So if you can manage to slog through the first painful 200 pages (why did no one warn me about that!?), the payoff is awesome. Still a few things wrong with it, and Bella still whiny and annoying sometimes, but...
I'm converted. Completely.