Anyone have much experience with it? I know it is care free pretty much but that isn't what I am worried about... I had a lady call the office today and we believe she has centipede grass invading her existing turf. From my past with the stuff it grows so thick that the only thing I can think to do is kill it and then tear it up to allow the next whatever to come in. Any thoughts? I am planning on going out there tomorrow to take a look.