The product does eliminate the odor in my shoes.  It does have a nice citrus-like scent.  It does not prevent further funkification of the footwear.

Basically, I take my shoes off, I spray them, they are defunkified.

I wear them once, and they are re-funkified.

I bought this product because of reviews stating that it kept their shoes odor free for days at a time.  Not so for I of nas-TAY foot funkification...  Blech...