I liked it, even if the characters weren't great. I liked book 1 in kind of a detective/mystery novel kind of way. The first book is very different from the next two, which is where I think the series really starts to address larger questions. It's still kind of flimsy and the characters might get worse, but I like some of the questions and hypotheses about the universe that it addresses. It gets into a more philosophical approach to the universe and how other species may interact with each other, mutually assured destruction, and how the human race would react to a sword of Damocles hanging over our head for 400 years. It's told from a Chinese perspective as well, so it was interesting to me to see how he thinks these might play out as opposed to my assumptions coming from a western perspective.

I think the dark forest hypothesis as an answer to Fermi is reasonable, and I like a lot of the big picture ideas.

But yea, it's not really a character driven series.