Benjamin A.wrote a review of SciCon Hippo 550 Roller 2 Saddlebag on January 11, 2015
Familiarity: I've put it through the wringer
I've put a little over 2 years and 16,000 miles on this bag. For the most part it has been great: I love the ability to twist off the bag when I need to access it and the included bike levers are surprisingly my favorite pair.
Unfortunately over time the attachments have become worn. First the outside tire lever mount became too loose and I had to move it inside the main compartment, then the ratchet nubs on the twist-lock itself became worn and the bag began coming loose until it eventually fell off during a ride.
Overall it's a very convenient bag so long as you keep an eye on its wear and replace it soon enough. I'll be trying a different type of bag next time in search of the perfect fit.