A hugely ambitious book with multiple distinct types of aliens, technologies well beyond our ability of extrapolating from the current state of knowledge, narrative chunks with alternating disparate styles, and (human) characters with a completely worked-out set of conflicting aims plus a propensity for hiding the truth. It's all quite a lot to consume in the form of a weekly serial, which is what I did, and I am planning to go back and read it again as a whole to try to understand just what was going on. The author's commentary (posted online, also weekly) was a big help, and the character Twitter streams I thought to be a cool concept too.