My Take
I like this for quick activities or photo presentation. You can also make word slides and provide themed music for your presentation. The downside is you can only illustrate 30 pictures at a time without having to pay. Anymore than 30 photos in your presentation will require you to upgrade to premium and pay. Site is free unless you go over 30 images.
How I Use It
Students may use this as a quick tool for making a video to present pictures. This would be great for younger students and easy exercises where you do not need to explain everything in slide show.