My Take
I would say that this is more of a customized organizational tool. Instead of having multiple documents, images, videos, etc scattered all over the place (bookmarked, save to drive, downloads, etc), students have a neat place to save everything including their own personal voice notes. I like how the students can share their padlets easily with each other.
How I Use It
I have used Padlet from students in Kindergarten all the way to Grade 9. I have been using it as a way to organize and share research information when I work with students.