As for right now can't tell too much difference, I have seen some orange tips on some of the grass blades. I put it out two weeks ago. I have had about two " of rain since I put it out, thought it would have been much greener by now.
So I have been using the Liquid Aerator 3x a year now for a few years but recently conducted a soil test and found that most areas of my yard are nitrogen deficient and this product solves that problem for me. Very happy with it. Please note that, if your soil isn't lacking nitrogen then take a look at some of the other liquid fertilizers that fits your situation. Don't forget to water.