My challenge pertained to fogging with Wiley X goggles while hunting in below freezing conditions. I had previously tried two other products w/o success. I tried the B&L Fogshield dual application approach. Not difficult to work with. However, not successful. Thus, I cannot recommend that this product will "end the frustration that comes with foggy vision" in all situations.
Pros: not difficult to use
Cons: not effective for my problem
This review was written in the old system and had content requirements that are different than reviews written today.