Very creepy and suspenseful. The first chapter alone had me checking my doors to make sure they were locked. More graphically violent that what I usually read. 
 I enjoyed most of the characters - I liked that they were 3 dimensional, and most of them had flaws as well as strengths. Also enjoyed the setting (1990). The explanations of various medical and computer technology, now extremely dated, was interesting. Also thought it was hilarious that everybody could smoke in the government buildings.