I read this because I really felt like rereading it. I haven't read the series since 2008. I was quickly involved in the book and couldn't put it down. I'm pretty sure if you haven't heard of the Twilight Saga you must be living under a rock. When it came out it reached #5 on the New York Times bestseller list within a month and later that year reached #1. It was the biggest selling book of 2008, and was the second best selling in 2009 - only overtaken by its sequel New Moon.
I read a good review on Goodreads, where a guy called Chris split his review into three parts. One written from the perspective of his inner 15 year-old-girl, one as a fan of YA fiction and one as his inner feminist. I found this funny and a clever way to explain his feelings toward the novel. I think I love this book because I relate to Bella and am totally sucked in on the romantic aspects. On the other hand, many consider it a terrible example of good writing and shudder at the thought of a generation of young girls obsessing over the series. Interestingly enough, despite the author being female, I do find the book a little sexist (I have heard it said that this is due to Meyer's Mormon background). The heroine Bella is constantly the damsel in distress. She is portrayed as being inept and constantly clumsy. She is also constantly cooking and cleaning for her father. All in all I do like this book. I'm not going to lie. If you want a romance where you find yourself desperately wishing you could date the hero - this is the book to read.
Here's a link to a page on Meyer's website where she explains the story behind Twilight.
Here's a link to the online version of Midnight Sun - Twilight from Edward's perspective. It is very interesting.
And here's the trailer. (and yes, the movie is a little cringe-worthy)