I am a former employee of Virool and these reviews really upset me. First of all, Virool is in full compliance of YouTube's Terms of Service. Alex, CEO, went out of his way to meet Salar, CEO of YouTube, and their entire executive team just to make sure that whatever Virool is doing would be in full transparency and compliance with all of YouTube's ToS. As a result, during my time working there very few videos got removed or taken down from the website.
Also, here's a breakdown of some mistakes that people make on Virool. When you select the targeting for your video, you HAVE the option to select: blogs, mobile, games, social networks, pre-roll, and virtual currency. The company doesn't work and has removed all sites that pay users to watch videos. Second, it's important to leave keywords and select categories for the video. Third, you can select gender and age for the group you are targeting. Fourth, you should geo-target the right region with your video properly and select what you want people to do after they watch the video.
Overall, Virool is an incredible company and they have worked with a vast list of clients. I hate anyone that mentions anything negative about the company, as they fully refund unhappy customers and have available support that addresses everyone's questions. It's not always easy to please everyone, but Virool tries its best.
Chris, thanks for sharing your thoughts - hope you're doing well!