What's cool is that feature was completely intuitive and you didn't need to point it out. Again, a little thing, but the little bit of delight users experience when they "discover" these types of features goes a long way.

I also like the URL feature, but unlike the other person I did not intuitively expect to type in a a random url and have that work. Its not something people typically do. That said, its pretty cool. You should edit your how to use to include that.