My Heart and Other Black Holes was good book.  And the only thing I didn't care for was that the ending seemed really rushed.  I totally get what happened and why it happened and how Aysel came to feel as she did, but I just wish Warga would have taken a little more time getting there.  I know that is not very like me!  I prefer a short book.  I think it really says a lot about how much I liked this book, given that I would want it to be even longer!