I opted for these panniers for my superduke gt as others I felt were too wide, too expensive or ridiculously expensive (Ktm ones) They fit to the bike securely via the 3p system and have a reasonably narrow profile in the non expanded configuration. Its good to have the option to expand these should I need to. The opening, closing, locking and removal of the cases is pretty straight forward as is the expanding mechanism, just make sure when you open the red side clips to expand the case, open them till they click into place. The quality seems good for this price point. A retaining net is included in each pannier and they look modern too. Long term I can see these lasting me years, as I will only occasionally use them. I do question the quality of the red clips on the expanding mechanism. They seem a little flimsy, and I can see these potentially wearing out over time but hopefully not. Overall im very happy with my purchase. Now to see about some inner bags.