Did not remove funk.
I had a pair of newish shoes that developed a funk for some reason.  After several treatments the shoes still stunk so I threw them out.  This spray smell like bowling alley shoe spray with some citrus cleaner added, its not particularly pleasant.  The smell does fade overnight, so I have been using it to keep my other shoes smelling nice.  However, I am not sure such aggressive chemicals are really needed for simple shoe maintenance.  Finally the price on Amazon is higher than the MSRP on the side of the can.
Rating: 3 stars