Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buy this if you use OS X

David Pogue is probably the most lucid, entertaining and knowledgeable Mac-related writer on the planet today.His genuine enthusiasm for, and wisdom about the subject are tempered perfectly by both humour and pragmatism.This book is a superb combination of:a 'dummy's' guide that doesn't treat the reader like a dummy;an expert guide that doesn't bamboozle the non-expert;a trouble-shooting guide for those who dive in 'head first'; and,a superb reference volume for anyone who uses this operating system.If Apple had no other advantage over Microsoft than David Pogue they would still be miles ahead.