Dog Appeasing Pheromone?

[Rachel]

Has anyone tried using DAP?  I would like to hear your thoughts on it and whether it actually worked or not.

"Uses:
D.A.P. Spray (Dog Appeasing Pheromone) helps stop or prevent fear or stress-related behavior in puppies and adult dogs that result in:

Destructive behavior
Excessive vocalization (barking, whining)
House soiling
Separation Anxiety
Phobias (thunderstorms, fireworks)"