Ring

First half of the book is pure gold in an epic scale but I somehow did not like when the handwavium Extra Super FTL hyperdrive appeared, it wasn't that bad to compromise the whole book but I was not expecting that at all. Probably it made sense in some way for the plot but It also made the universe looks like a small city and it sort of broke that sense of wonder you got when you reading about the Ring, super strings, etc.

Apart from that, it could be a full 5 star book.