We had Leafguard install gutters on our house in 2009. The first time it rained we had water shooting off the roof and bypassing the gutters in several places.
One gutter was installe with an opposite slope so it held water after the rain stopped. We have had them out to the house a half dozen times. Just before the last time a supervisor said that they were not installed far enough away from the edge of the roof. He said they would correct the problem.
They did come out and work on them and solved someof the worst problems but we still have water shooting over the edge of the roof in places.
It shoots over the gutters. I think it may be a good product but the skill of the installers and repairers is questionable.
Product or Service Mentioned: Leafguard Installation.