First off, I really enjoyed this book. I read
The Star Fraction a long time ago and got hooked on Ken Macleod, reading everything that he wrote subsequently for quite a while, but then slowly lost interest. The Star Fraction has a wonderful plot, insanely complicated politics which somehow seemed realistic, was not set too far into the future and was full of possibilities. But slowly the books that followed lost that fizz. But with The Execution Channel all that energy is back. And I'm sure more will follow.
I found it pretty difficult to get into at first; the writing seemed slightly stilted, the plot dark and rather unappealing. But it quickly picks up pace and starts to get more intricate, more engrossing and the possibilities start opening out. I can't help but compare it to The Star Fraction - in that, the main character is haunted by the legacy of his father. In The Execution Channel, there are similarities. Although the father character is there and (this time) alive and well, he still, in a sense, dominates the book, through the actions of his two adult children.
At times, it seems less a sci-fi novel and more a spy thriller, but the references to James Blish which, at first , seem totally out of place, slowly take on more relevance and importance. I won't say more as I don't want to give away the plot. Plot, ah yes, well there is one in there somewhere. But it's funny the way that several characters seem to feel responsible for what actually happens; it's funny because you get the feeling that ultimately none of them made the slightest difference. Still, somehow it's a gripping read.
One thing though - I wish it had been proof-read better.