I'll expose my bias right up front (sorry Dave in STL). I'm Tim Staub, and I own Elko Products, the maker of the Elko GuttaGard. Since 1983, we've sold more than 20 million feet of GuttGard nationwide.
The gutter protection market is the biggest consumer rip-off in the home improvement market. Folks (mostly older folks and women) are paying thousands of dollars to get a piece of metal put over their gutters. New gutters cost about $2.50 - $3.00 per foot. But gutter protection costs from $8.00 - $25.00 per foot.
GuttaGard can be installed by a DIY'er with nothing but a butter knife . . . for about $1 per foot. It's solid aluminum (no holes, no mesh, no mess) and it can handle at least 6" of rain per hour (the average rainfall in the US is 30" . . . only Louisiana gets more than 6" of rain . . . per MONTH!). With the new Gutter Genius clip, it can handle gale force winds without dislodging.
Check us out online (google "GuttaGard" and you'll find us). We have a free online publication called "The Consumer Guide to Gutter Protection" that will enlighten and hopefully entertain you as well.
Call our toll free line and ask for me. I'll be happy to talk with you directly.