How I Use It
As a government teacher, I created a project called "Student-Centered Fridays", where a pair of students every Friday would lead a 30-minute lesson to the class. On the Wednesday of that week, they would conference with me to show me that they have at least the basic structure of what they're going to present (the topic must be government/politics related) and how they're going to present it. I recommend that they include activities and visuals, so when conference with me, I show them how to use Prezi. We go through how to upload images and videos, make flashy transitions (for those who want it), and create effective slides.
The only critique I have of this product is that it might be great for students presenting in a middle school or high school setting, but its application outside of these grade levels is limited. Prezi is all about multimedia interaction and presentations with more creativity, but in the business world, the old stalwarts will probably not want you to use jazzy transitions and flashy colors. Therefore, it is still in your best interest to implore to your students that Prezi may be limited in its application further down the road in one's career.
For some reason, students look at PowerPoint and think that it's obsolete. In truth, there's some veracity to this statement, but when they play with Prezi, they say that it feels so much more intuitive and interactive. They're right in that Prezi allows you to do more with essentially the same basic tools. Presentations can be jazzed up more easily with sounds, music, images, and videos without the hassle that PowerPoint puts you through. I find that most of my students prefer using Prezi to build presentations because it allows them to use more of their technological know-how, and it does it in a simpler fashion.