I have a set of PB fenders that I installed on two bikes about 6 years ago. They do last. I eventually lost the mud flaps and had to install my own. One of the rear fenders eventually cracked off near the stays -- due to some rough treatment. I am still using the rest of it.

I agree they are quiet too, which is a blessing you won't realize until you install those absolutely gorgeous, but rattle-prone, Velo Orange metal fenders.