We wanted the leafless gutter guard system to keep pine needles from entering and clogging the gutters on our house in the forest. So far they seem to be working very well. Forest litter still has to be swept off gutter near valleys in roof in two places, but most debris washes off by itself. This is so much easier than our vacuuming out clogged gutters several times a year. If you had a product to sweep the leaves and needles off the roof automatically, like maybe a roof sprinkler system that runs along the ridges, I'd probably buy that, too.