The ability to upload multiple videos at once makes it an excellent choice for those who need more than one file in their campaign's media library as well! I honestly have no complaints about this software - we've been using stream rail since 2008 when our agency first got involved (and even before that). There are some limitations of storage space you may face if your files get too large or there aren't enough servers available but nothing major has popped up yet from what i'm aware- just keep track by keeping copies elsewhere until everything works out ok :) Great tool overall though very easy integration into campaigns/adsets etc without having much knowledge required beforehand; great way forward especially where clients want creative control rather then relying 100% upon us doing all work ourselves!!