The best thing about Prezi is that it creates good visual presentations and has great designs to help many visualise information in a useful way that normal powerpoint presentations cannot do.
Easy to make presentations. Presentations look super nice and super proffesional with this app.
It's easy to build an impressive presentation and the pre available templates are great for that, you can easily "wow" your attendees with its pre-build transitions.
Sometimes it's difficult when you make errors to understand what you did wrong, and how to not create the same mistakes again.
Orientation can get confusing with all the zooming in and out.
If you are trying to analyze someone's presentation, constantly clicking through to find the correct keyframe is very ineffective.