The fact that it's a low pH mist allows for quick and easy pH balance. After spraying, you can actually feel the oil and moisture balance being somewhat restored! As it's suitable for acne-prone skin, it gives the sensation of reducing excess oil on the skin. You might not even need powder anymore...?
The spray distribution isn't very even. It says not to apply directly to the face, which is honestly quite inconvenient and bothersome.
As someone who actually uses this product, I keep it in the bathroom to spray right after cleansing! If you feel your skin is too oily, spraying this before applying makeup seems to help prevent pilling to some extent.