I ordered two advertising campaigns, and both videos turned out to be failures. First, when setting up the targeting, I specified the male gender and traffic from social media. As a result, there was only one placement on VK, one on OK, and 69 placements on other resources. Is this really traffic from social media? Secondly, the videos are long, 10-15 minutes each, and the retention rate from the last campaign dropped from 76% to 5.1%, averaging only 41 seconds. People come in expecting a full movie, but my video is only 20 seconds long, and they just close it. The traffic is not targeted, and it's hard to determine the gender and age of the visitors. You can't trust experts like Severianin, who recommend Vibum and provide referral links, only to later say in other videos that you'll have to advertise a low-quality product. This service is only good for inflating views; it doesn't provide traffic, and inflating likes will be more cost-effective and effective.