Ключевые слова: analysis, assessment, background, best, business, choice, client, comment, concept, consumer, customer, evaluate, evaluation, excellent, experience, feedback, good, hand, happy, information, internet, management, marketing, mobile, online, opinion, performance, person, positive, product, quality, ranking, rate, rating, report, reputation, result, review, satisfaction, service, sign, star, success, survey, symbol, test, testimonial, user, vote, word,