Well enough written that you keep reading it - which just made me more irritated that I actually finished it. Seemed like a reasonable enough story for at least half the book, then you realise, that these spaceships are flying about without regard to physics or any reason. It can take you months or a few minutes to reach a place. You have no idea where anywhere is in relation to any other place. It degenerates into our hero, who is an incompetent whiney co-pilot infected with a mysterious parasite, being the chosen one of some mysterious ethereal aliens to fight the Dark One. The Dark One turns out to be a chap from a different dimension that has snuck into this one and is consuming it in its entirety.
You actually like the characters for a start, and are lulled into the false sense of security that they will develop into likeable interesting people. But no, they don't. And the darkness that has been destroying everything, making the universe smaller and smaller until nothing is left? I don't really know what happened there, something about having to go into the past to make it right again. Our hero is too busy killing his adversery (not the Dark One), which turns out to be.. oh, shouldn't mention that in case you do want to read it. But, really, the whole story is nonsensical without the humour.