Just finished reading Ruin, just as good as the previous two novels. 
 (view spoiler)[...Though John Gwynne left some major plot changes for the last few chapters, and has left himself what seems a monumental task to satisfyingly wrap up the story in the next book without losing the overarching tone/character/style/pacing/plot that has carried successfully through the first three books (assuming the fourth is the last in the series...). 
 The almost thriller-like style with a minor cliffhanger every 10 pages (i.e. chapter), and the chapter structure in general felt well organized and edited. The pacing rarely seemed slow, rushed, or abrupt, and the plot lines of the characters were neither too predictable nor too disjointed. The ending might be one exception to this... but after enjoying the first three books I have hope that the fourth will clear up and dispel the doubts left by the ending. 
 But I'm just some guy reading a book... Can't wait for the next one! (hide spoiler)]