Everyone loved it, except me, apparently. I'll probably give it another go, but I found Leckie's prose style just... dull.
I'm currently halfway through Ten Billion Days and One Hundred Billion Nights by Ryu Mitsuse, which is considered one of the best Japanese SF novels. So far it's pretty amazing, and the translation is exceptional.
The book is SF on the grandest --and goony-est-- scale; it begins with the formation of the Solar System, jumps to a brief interlude starring one of the first amphibians (who's being uplifted by technologically advanced aliens) and then, in order, introduces Plato (looking for the secrets of Atlantis, which, of course, had nuclear power), Siddhartha-on-the-cusp-of-becoming-the-Buddha (who travels 160,000,000,000 light-years through space), and Jesus Christ (and Pilate) as characters.
It reminds of a blend of Olaf Stapleton, Doris Lessing's "Canopus in Argos" cycle, with, god help me, a dash of E.E. "Doc" Smith's "Lensmen" (actually, what I've read so far could be summed up as -- "What if Triplanetary were written by a talented author?").