I tried this after using Shout or Oxyclean for a long time.  I wasn't impressed.  My son plays baseball and his pants and shirt are really dirty or grass stained (he plays centerfield).  Shout and Oxyclean do OK but I was looking for something better.  Spray and Wash did a worse job and didn't get out any of the grass stains.  It removed the dirt but the grass stains are the hardest.  I also tried Resolve with no avail either.  Spray and Wash doesn't perform to the standard that Shout or Oxyclean do.  I haven't found that perfect stain remover yet but Spray and Wash is at the bottom of my list.