i have had many complaints I like the stripes of s 21 much better than the stripes of the 36. One lady called me up and said her lawn was full of dandelions, when I show up not a single dandelion. She said she just wanted me to come over so that she could pay me and didnt want to waste 42 cents on a stamp. One lady chewed me a new one last month saying that her lawn is in the worst condition she has ever seen it. yet she doesn't fertilize or water and wants the grass cut once every 3 weeks. People are dumb.