Well, this one is different. The story is told by the points of view of the Roci crew. All of them this time, not just Holden like in the previous novels. That was a nice change, since knowing the past of the main characters is something that we reallly needed. And it's done very tactfully, merging the charcters' past with the main story in a very interesting way.
But it's not just a "character building" entry in the Expanse saga. There's A LOT going on on the political side too. A direction I really wasn't expecting and that felt maybe a little too rushed to be realistic. But I'm splitting hair here.
Needless to say at this point, I alredy started the 6th novel in the saga. And I'll keep reading them until they'll keep coming.