I have Ortliebs and I am very impressed with the waterproofness but I am not with the hard plastic attachments. I was only 3 days in to a 58 day Transamerica ride when my partner bumped my Ortlieb panniers with her Ortlieb panniers and mine fell right off. The hooks that attach the panniers to the rack snapped right off at the arc. They snapped off so easily, we thought it must be a defective item especially since my friend had the exact same attachments on her pannier and nothing happened to hers. I ended up shipping the panniers back home since they were useless with the broken attachments. When I returned home 2 months later and asked Ortlieb customer service for a replacement since I only used them for 3 days, they refused citing they were involved in a crash and they will not cover it. I sent them photos and explained that it seems evident I got a bad one but they refused to replace the attachments and directed me to purchase replacements. They were very cordial in the email exchange but I must say I was really disappointed. Especially since I had to buy a replacement pannier on the road (not Ortlieb) to finish my trip.