I did a search and it came up with this, http://www.mycurrencycollection.com/reference/star-notes/lookup/20/2009/JF02833623* What is your opinion? Keep or use?
Common note, so unless it's in ideal crisp condition I would spend it. Post-2000 (especially higher denomination) star notes aren't worth much over face unless they're in very good condition, or come from a lower run.
I keep all my star notes regardless of condition. You just never know. If you can afford to set $20 aside then do it.