This metric reflects the percentage of viewers who watched and left each moment of your video. And as mentioned earlier, if your viewers are glued to the screen watching your video longer, the platform will be more likely to recommend them. The main features of strong product descriptions. There is a common misconception that product descriptions should describe the product. Their main job is actually to persuade customers to buy, which is more likely to happen when they focus on benefits and not features. Why are good product descriptions important? Here is solid proof. Emarketer researched the importance of e-commerce product page elements for people shopping online.