Gutters:Leaf & debris protection
my experience has been very good
have spot checked several times, and they are still in good shape and water flows thru them, even in a heavy rain
I don't have any pine needles, just some sycamore, maple and birch leaves and assorted seed dispersal things... leaves still get blown off by the wind... ( so not sure how they perform with pine needles or other kind of gutter debris )
the price when I bought was $55 for 32' , now it's a little pricey on Amazon, but still cheaper than some other solutions, but you can buy at local hardware stores too, and I did because I needed just a few extra sections.
so, just tossing this out for consideration
Note: have to have the K style gutter, 5", see details at their website
I have the screens on my home, they work, and allow for occasional flushing to clear them of roof gravel, mostly.
My brother will also tell you that a properly pitched gutter will keep itself a lot cleaner.....
I too am curious to see responses on this thread. If there is something better, I'd love to hear about it.