On 2009-08-03, Phisherman wrote:

I have the brown ones, still holding up after 15 years (e.TN). I
still clean/inspect the gutters once a year.

I don't even see how that's possible, unless the batch I got was
different type of plastic.

Are they installed under or over the shingles?

Are your gutters exposed to direct sunlight, or are you in the shade of
evergreens or something?