I am happy with my leaf filter system. When I had the salesman write up the contract I had him include their television promise that they would clean and re-align the gutters.
A crew came out who were obviously subcontractors who got up on the roof and just put the system on my gutters, nothing else. When I questioned them about the cleaning and re-aligning they told me they only had to determine than the gutters were draining and install the system.
I called Leaf Filter, and they sent out a very nice young man who looked over my contract and then spent another 8 hours cleaning, re-aligning and installing the system again.
I have never had a problem with them and they work great. Be sure to have them include everything they promise in writing in your contract.
User's recommendation: Have them include in writing everything they promise in the contract.
Product or Service Mentioned: Leaffilter North Filter.
Location: Cassopolis, Michigan