How I Use It
I use this with 2nd-6th graders and they love having it and using it. I teach them about documents and presentations (sheets with 4th-6th graders) using Google Drive (and they use the iPad app). Inserting photos and citing sources is made EXTREMELY easy with Tools -> Research.
I can't imagine a classroom or computer lab without Google Apps (Drive) for Education. It's free and amazing to have. It takes awhile to set up users and passwords, like any other software, but it's personalized.