I'm thinking of installing leafguard on my house, which is surrounded by
several douglas fir trees that is dropping pine needles.

I have used google group to read about leafguard in this newsgroup.
Basically, some people said it works (the ones who have it installed) and
some people say it won't work (sounds like they don't have it installed).

So, has anyone installed leafguard and found that it doesn't work? If so, in
what way? If it is clogged with debries, does leafguard actually give you
free gutter cleaning? If the water overshoot the gutter, do they come and
dry your basement?