I have 3994 miles and 15 months on a set of Ortlieb Back Roller PLUS Panniers for my daily commute. I ride 2 miles to the VRE train and then 7 miles on the other end to work. I repeat the prosses in the evening averaging close to 100 miles a week. I carry all my work cloths and ride directly to the gym to shower and change. I am an all-weather rider including 1 1/2" of slush and snow and many thunderstorms and heavy rain. I highly recommend the Ortlieb’s and plan on getting the matching front set for my first road tour. I also use a Topeak trunk bag but had to buy a REI generic day pack rain cover to keep its contents dry.