Had Gutter Guardians installed 7/22/19. Received 1/4-inch rain the same day as Guardian covers installed. Gutters overflowed at valleys and dripped down the front of gutters which did not happen before Guardians installed. Curious to see what happens in larger rain event. Called to complain immediately, then on 8/1/19. No response. Called again on 8/12/19 to get response.