Ключевые слова: bad sides, comments, customer analysis, customer analytics, customer attrition, customer behavior, customer benefits, customer care service, customer contacts, customer feedback, customer insight, customer preview, customer review, customer satisfaction, customer service, customer value, customers objection, data base software, demographics, development, engagement, factor, feedback, fivestar, get way, good sides, goods and service, greetings, group, guru, knowledge management, life time value, loyalty, outreach, powerful service, products, rating category, rating info, rating system, relationship management, reputation, review writer, service reviewer, usefulness, validity,