There is nothing better than a BOB Trailer. Just ask my brother, Bob.
Despite 500 miles on the GDMBR from Banff to some unknown town in Montana, there is little - if any - wear. Since then, it's been hanging high in the garage out of the weather.
The waterproof bag is in excellent shape and I even have the spider bungy cord.
There is one safety hook that is broken. I haven't checked, but there's a website that sells parts. Or, jury rig it. See the photo.