I work at a large media agency in Australia and represent clients such as VW, Qantas Airlines, the government of Australia, A&E TV Network and others. We recently began using Virool and I've been extremely pleased.
We just wanted blog distribution for our videos and my account manager, Kenn, was able to set it all up for me. Through Virool, we were able to get our client's videos on virtually all WordPress blogs that have WordAds on them. Also, they were able to secure us viewership on 9Gag and Cheeseburger network sites.
We are looking to spend over $300,000 with them and I highly recommend their service. The team there is great!