Gutter Maxx is the name brand of the K-Guard dealer in the Chicago area. K-guard has been sold by 2 gutter protection systems other companies that went out of business a few years back, Gutter Gardian and Leaf Blocker.
The K-Guard system is probably the second best leaf cover system on the market. It uses the principal of water adhesion to collect water and keep debris out. It is constructed of heavy duty aluminum and used oversized down pipes.
The issues with this product are the hood piece snaps on and isn’t screwed into the system raising the question of whether it can blow off in a heavy wind. Also part of their design incorporates an opening on the horizontal plan of the hood at the back of the gutter. The hood actually slopes back to this opening. One would imagine that this opening would become clogged quite easily. One last issue has to do with the bracketing system, they just don’t seem very substancial and are made of plastic.
UPDATE: GutterMaxx is no longer available in the Chicagoland market. Another victim of the far superior GutterShutter Leaf Guard System!