Yes. Subscribers get a notification that you posted on your wall. It's a good way to communicate with your subscribers.
(Just fyi, as a reader, I don't like getting multiple posts from the same creator in a single day. Anymore than 2 times a week is too much for me. I've unsubscribed because I was tired of my notification box getting filled up.)
I would use it sparingly, only when you have something important to say. That's my 2 cent.