Yes I have,4 of these lawns are my regular mowing customers.Just curious have you walked the lawn to actually see if there are weeds. My thinking is the lawns were in fairly good shape when these companies started doing apps on them and not many weeds were present to begin with. My father who only takes care of his 2.5 acres, has a pretty much weed free lawn and all he used is granular weed and feed. But.....he is out doing the apps at sunrise when a heavy dew is present and has spent many years getting his lawn in the shape its in right now. Liquid herbicides give much quicker results and give you a much biger window of application, because you don't need a heavy dew to make the granuals stick to the weeds.