My Take
It is a very bad website to use. It deletes projects and automatically messes up all the layers and stuff. All it does is make students frusterated. Do NOT use it. It will only make your students angry and unproductive. Use different animation apps. Not this one.
How I Use It
We use it to make animations, but it's terrible. Slow, glitchy, and half the time it deletes projects that take hours and screws up the layering. Would not recommend it. Just use FlipaClip