Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doom:Knee Deep in the Dead worth hunting down...

First of all, let me say that if you're a big Doom fan or just getting into it, do yourself a favor and get this book. Knee Deep in the Dead is extrememly well written and one of those types of books you can put down as you wonder what is going to happen next. Especially with Doom 3 on the horizon for the PC, you owe it to yourself to familiarize yourself with series. It's awesome.