Well I have given this bag a pretty good run, and I give it a 4.5 out of 5. If this bag is used for it's intended purpose, you will be well satisfied with it's performance. I have had it in many rains , including heavy rains, and it stayed dry as a chip. I will say that if it turns over in the bottom of the boat and the boat is full of water, it will leak. I bet they will all leak if submerged in the water. I did not give the bag a perfect score because the zipper is a little stiff, even after nearly a year of use.
Overall, I give this bag a pretty good recommendation.
Also, a little pricey, but pretty much in line with the others.
You can see these bags at Fly South and Cumberland Transit. Check em out.
JW