I just got a futa bag, and so far it's working well. The zipper is fast and easy to use and it holds air nicely. My only complaint is that the bag opening is a little too wide and kind of an awkward fit for my pyranha m3. I did take a look at the wildwasser bags, which are less than half the price, but the seal construction didn't look very substantial.
However if I needed two bags, I probably would have gone with the wildwassers rather than having to spend more than my boat is worth on futa bags.