[Change of Heart] is the fifth Picoult book I have read, and I really enjoyed it! It wasn't full of plot twists and turns as her other books, but I liked that in this case. I liked how the story was told from different character's points of view - it was a nice way to tie-in how, even though the characters seemed so different, they also had a lot in common. However, because of this, none of the characters were ever really deeply developed.
The only other thing that bothered me was that some of it read like a Jennifer Weiner book - the plus sized girl not liking herself, but has a career she loves, and ends up with the hot doctor. Cute, but didn't really fit with the rest of the story line.