Just finished installing their gutter hoods on my garage. It only took about 5 hours working by myself. These are top quality, construction grade guard and are superior to the plastic ones sold at the home centers. I feel they will stand up to winds because they are secured by screws into the clips and the lower lip snaps into the clip. They slide under the second shingle thus covering any first shingles that may have a little wear. I feel the small ridges and the final pitch when installed allows for a better water flow than something that just follows the pitch of the roof. It rained last night and I went out to check them. The water flow into the gutter was perfect. I have a humongous maple tree behind my garage and am looking forward to no longer worrying about junk stuck in screen type gutter guards.Yes, they cost more than what you see at home centers, but you have to consider quality, the type of material, and functionality. Take a look at their installation videos to get a feel for how they are installed.