The best thing about this product is that it integrates with many different languages, so you don't need extra servers just because your website has multiple language versions or other extensions like video players (like Yandex) etc.. It's not free but I guess if someone uses their service enough then they will probably upgrade at some point in time as well since there are no limits when using any plan! As mentioned above - only downside would be cost-benefit ratio which can become expensive fast unless usage levels increase quite rapidly. We use errorstream mostly due our videos being embedded into webpages from various sources including YouTube partners API integration where we sometimes receive "video does not exist" message even though content exists somewhere else online. With help provided by user friendly interface through an easy admin panel and ability integrate very easily within our CMS / WordPress environment without problems - solving those issues was really awesome experience while helping customers understand why something happens what kind of code changes/fixes should.