A bit confusing that there isn't any submit button or other indicator that shows me that my preference is saved.
Otherwise, a cool feature; didn't know about it until now.
Otherwise, a cool feature; didn't know about it until now.
It felt pretty obvious to me.
I don't know if this is a good design or not, just sharing my opinion as someone else who took a bit to understand I had actually subscribed.
I also was sort of expecting the example to change :/
It's a very subtle approach, but it's a little too subtle for my taste.
It disappears after just a few seconds, though. That might be why you missed it.