At this point, I seem to be the only reviewer who actually bought this book.
I vacillated between 2 stars (ok) and 3 (liked it). I decided 3 simply because the author had an original take on clones and did an excellent job of character development with the three friends that was believable.
But the way my listening went was: liked it, bored, didn’t like it, bored, liked it, didn’t like it, great epilogue! So all in all, I’d say I enjoyed listening to about half the book.