The instructions are simple and clear. I installed the inside corners first and found the roofers had applied a sealer in the valleys (good practice), but I was able to use a chisel to raise the edge enough to slide the screens under the shingles there. Next, the outside corners plus a hard-to-access area next to an arbor. Then, it was clear sailing on the straight stretches. The magnetic driver worked great, and the screws drilled through the aluminum frame easily. Be careful not to over drill.

We installed these gutter guards about a month ago after a new roof was put on our house. The guards are keeping the roof grit from the new shingles out of the gutters while letting the water flow into the gutter. So far, we have not had a build up of grit on the mesh guards. We are finding the grit on the ground after a rain. We are very happy with these gutter guards.

The guards were easy to install once I got the hang of inserting the backside under the roofing shingles. A slight lip was there to place the backside onto, creating the perfect slope to aid leaf run off. The final piece was relatively easy to cut with a metal ax saw. My old tinsnips were too dull. I installed them on the front and rear of my garage gutters. Now I'm waiting for autumn for the real test when leaves fall.

Great product for the money. Fairly easy to install. I have a very steep pitched roof and had to follow the installation instructions for such. Requires bending the guards and attaching to the Facia rather than sliding the end of the guards under the last shingle. Instructions talk about bending using a strip of wood as a "bending guide". Hint - I have a Workmate portable work table which acts like a siding break tool. This was great for bending the guards. Attaching to the Facia requires the use of twice as many self-tapping screws vs. install for a low pitch roof. I reached out to Raptor and they sent me extra screws for free (!) and quickly (!) , so that I could complete the steep pitch installation. So far the guards seem to be performing well during the summer rains. Real test will be in the fall when leaves are coming down. (I live next a section of woods that dumps a lot of leaves on my property and in the past into my gutters.)

I was skeptical at first but these were extremely easy to install. Took me less then 30minutes to do 60ft (including setup time). Tinsnips are optional for install but they were a big help.

I have 2/3 of my roof funneling to one gutter (terrible design), I had real concerns about water flow being restricted but did great in our first couple of storms.

Build quality seems solid. I had concerns about the overlapping design catching leaves on top but so far so good.

Note - image was taken prior to first storm. Dirt in gutters was left over sand from shingles. Was too lazy to get the hose out to wash before.