I'm not a big believer... I try things ! When scents came out I gave them a good try. Set up two identical rods with the same lure ( weight, lenght, color ) and tried one with scent and one without, for crappie. In the same spot, ten cast with one, ten cast with the other. I would say that scent improved catch by about 10 to 20%. Better results when water was cold. No improvement in size of fish. Is it worth it ? Applying scent takes time and you are not fishing during that time. I do it when fishing is tough.