Neal Asher's "Polity Agent" is very good.
Hell, it's better than very good.
Go out and get yourself a copy. In my opinion, Asher's pretty much cornered the action Space Opera market. Asher seamlessly incorporates a hundred or so years of science fiction, its tropes, its imagery, and detonates it in your face.
(Yes, I know that hardly counts as a critical analysis, but these books are fun, I describe them to people who don't read SF as Star Wars meets James Bond, only better)