GutterDome is junk. It does not allow water to flow into the gutter.
Water rolls over the top and pools on the ground, damaging landscaping and threatening foundations. The company tried to "fix" it for us with caulk and scissors. The problem remained. After 7 months of trying to get them to honor their warranty, we ended up having to pay someone to remove the GutterDome and put it in the landfill where it belongs.
We were cheated out of thousands of dollars. We filed a lawsuit against them and won. But the company is so crooked, they won't pay the judgment and refuse the certified mail when it comes to the door. I even appealed to the parent company, and they won't pay the judgment either.
Terrible product and dishonest company. Save yourself the hassles and just hire someone to clean your gutters.