I didn't think this was gonna be my cup of tea and it took me a while to get the feel of the book and really get into it. The plot lost me at some point and I lost a bit of interest at the middle but by no means is this a bad book at all. On the contrary it was really well written and I think people who really enjoy Sci-Fi and time travel you will definitely love this one. I don't think I'm a huge lover of the whole time-travel space concept in general so this rating is very subjective. That twist near the end was so unexpected and the ending was really satisfying and well rounded and I must say I wouldn't have wanted it to end any other way.