One of the advantages of G-Recruiting, and cloud recruiting in general, is the ability to share and collaborate. Because data is stored in the cloud anyone who has a link, permission and internet access can find, share, edit, publish and file anything — everything from a job description to a full-blown site, landing page and apply online to boot. Because changes are made in realtime the pain of emailing stuff back and forth can be avoided. No more worrying about who has which version, or where you filed that precious document. It is also an efficient way to manage large volumes of data, like resumes.
One of the disadvantages, at least for people habituated to Microsoft, is having to figure out how to do stuff that is second nature in a new system like Google. Not that it is that hard, Google has addressed that and more with Google Cloud for Microsoft Office.