I’ve used it extensively to recover old CSS themes, images, and read long dead websites. There are a couple of lost songs I found downloads for there too! I’ve also saved a couple of pages that I haven’t had to use but it would be useful neutral third party evidence. Is it daily? No, but it’s an absolute blessing to have.
I wish we had better video upload choices. I tried Streamable but they delete your videos after a few months and most of the other alternatives (Vimeo etc) are paid. I tried Peertube and my video sat in mod limbo. So I guess it’s YouTube or nothing for me?