How I Use It
I let some of my more advanced elementary students use this tool for a presentation project. Were able to use school google accounts to log in, so no need to set up student accounts. Good for collaboration, but need to limit access to just the contributors of the project - not fully public. One student had someone 'hack' their presentation and didn't discover the problem until trying to present to the class. Adding content is more tricky than google slides, but many more options and more graphical results.
Kids love the added movement and almost limitless area for content. I sometimes get motion sickness with all the swirling in and out if over done. Good for collaboration - one of my projects had contributors from four states.