EasyBib in Google Docs

The other day on LifeHack, I read a post featuring 10 Best Google Drive Add-Ons You Should Be Using (I'm always curious to see who thinks what is "best", and why).  Number 8 in this list was EasyBib.  I've used the Easy Bib web site, but wasn't familiar with the Google Docs Tool version. From the video introduction, you might think that this tool is heaven's answer to creating a bibliography or resource list for a paper.  And it is easy to use, but....as usual with ...