I've used these bags (Gen 1, btw) for over a year, now (20K miles), and have had no problems . . . .the roll top bags remain watertight, the beavertail is the best idea, and the bags, once tightened up, don't move at all. The multitude of straps (that allow the load to be snugged down and remain stationary no matter what) are a lil confusing at first, but become second nature after two or three uses. The use of MOLLE points is very smart, allowing the owner to customize the bags to their specifications. Some form of documentation other than 20 minute videos would be welcome (where does THIS strap go is a question that isn't answered well in a video), but I'm thrilled with the bags. Highly recommended.