This books begins with a great premise, and is based on a great idea and from the start, is written very well, with the central character giving you lots of reasons to empathise, sympathise and generally care about her.
This feeling disappears the more you get into the book - you begin to wonder if the author somehow lost sight of the character she wanted to create and turns her into a hapless Bridget Jones-type (the kind of characters I am so tired of reading) and you begin to care less and less about what she does or thinks.
The middle and the end of the book seem to lack a lot of direction and structure - which were very strong at the beginning of the book.
I confess to skipping through the last few chapters, skim-reading just to get to the end - but was very disappointed by the end, especially because it had begun so strongly.
Borrow a copy, I don't think it's worth buying.