lets face it books like these are not gonna win awards or end up on any best sellers list. the author knows it, the publisher knows it and we know it when we pick it up but thats not to say its not worth a read.
if your like me and your a bit of a nerd then you will probably enjoy this. the story is simple enough (although the lore behind is incredibly complex) a planet is infested by lots a nasty bug like creatures (some of whom have psychic powers) and a band of space marines are sent in to clean it up along with an inquisitor (a chick with psychic powers... sort of) who has a secret mission of her own. nothing too original except for the added story line of the mantis warriors who actually do make it very worth reading. (i wont explain cause its worth finding out yourself).
where the writer excels most are the battle scenes which are all very well detailed but unfortunately his pacing is bloody awful. there are times in the heat of a battle scene the chapter will end and have the next one start somewhere totally different. this can get fairly annoying.
one very important thing. if you know nothing about the warhammer universe then do not start here. the author assumes you already know it and makes no attempt to explain it. a perfect example for me was that i did not know who the hell the eldar were until a friend explained it to me, the book never did. if you are just starting out with warhammer try the Horus Heresy instead.
as far as this book goes, its short, its fun, well described and i would recommend if you have a gap to fill and its going cheap.