Google Apps for Business is actually pretty useful. It opens doors to new possibilities and allows you to make immediate decisions related to the needs of your business apps. I have been using Google for a while, and only lately have I begun learning more on how to integrate what I already am working on with the features of Google Drive, Google Public Data Explorer and Google Analytics.
I used it with mobile in 2013 for a few months, and it was really quick to set up. I just had to spend about a month learning the new features and then decided that perhaps I would be better off starting out with the three other apps mentioned above.