The story itself was an interesting read.

I (unlike others) wasn't spoiled so i had the opportunity to read through and discover the key issues as they were elaborated in the story. I found it interesting that the cloning was treated with such subtlety though had to suspend disbelief a little. I kept wondering whether people would really accept their fate like that? It's like the opposite of The Island where the clones rebel (though that's in face of discovering a lie about their existence).

Key issues for me:
As above, whether it presented a realistic picture of that scenario
The characters being a bit "meh" for me. Didn't love them, didn't hate them. Found them more childish and irritating, even after they'd grown up.

I really dislike the use of not-so-subtle foreshadowing or linking sentences like "and that was the last time i spoke to Ruth until after the incident..... it was 6 years later when the incident happened". I guess after years of reading RJ who is a bit more subtle than that it's somewhat jarring.

So i guess i enjoyed it. I didn't find the issues particularly compelling, though, and that might have been due to overexposure of SciFi themes over the years.