Instruct: Classify Amazon reviews into positive or negative sentiment
Query: OK

Place a razor blade in your mouth and hold it there for a few hours. Shift it around carefully, mindful of its cool threat to your tender flesh. This is the experience of reading "Cockpit," which tempts and seduces, but ultimately mangles your sense of peace. Much like his earlier "Steps," the book turns on what the desperate (or the simply sick) resort to when there is little to lose. Although I became sick to my stomach at some of the violence portrayed here, the book is worthwhile - even quite interesting - at times. Not for the faint of heart.