I have the Corbin bags, and they are wonderfully beautiful as well as practical and well made. I recently rode 2200 kilometres with them, a lot of it in heavy rain - no drama.
You can also clean everything pretty well 100% without removing the bags, and in any case they enhance the Rocket's looks so much that I never take them off.
I used to have the Triumph bags, which are well made and funtional. However I could never come to grips with the look, nor the clunky and heavy mounting system. I checked out all bags on Planet Earth, and nothing comes within a hundred miles of the Corbins. They are expensive, but I am afraid one has to pay for greatness....
Cheers,
Vikei