It's pretty fun.
I transferred all of my links (250+) from delicious and sorted them all into boards. I like it because I can see all of the projects, which hopefully will help me remember what I wanted to do. I also really like how easy it is to pin things-just add the "pin it" button to your bookmarks bar and you're set!
Here I am - if you're interested.
Fair warning--don't start playing if you're busy!