My Take
I put all of my study guides on our account for the students to use in class or on their own. It takes some time, but once a review is up it is there for posterity. The kids can also create their own reviews. The downside is, teachers cannot control the distractors on practice tests and the site/app isn't particularly effective in doing so on its own.
How I Use It
I use it mainly for test reviews and practice tests. There are also games for students to play while studying.