Ratings and reviews from customers have become one of the most valuable sources of brand advice for 3M. 3M has invested heavily in gathering online customer ratings and reviews across many of its brands and products. The reviews provide valuable insights into how customers use products and what they think of 3M's products, competitors, service and pricing. 3M uses these insights to improve products, marketing and communications by incorporating customer language and feedback. The reviews have also helped drive sales growth and build customer trust in products.