Let me first say that I really like Pyranha boats...their designs and outfitting are great. I have a 420 and a Burn.
Leakage is less of a concern in the Burn, since it tends to ride higher in the water, but both have the same problem: just under the cockpit rim where the skirt is supposed to seal a screwhead protrudes which opens a little gap between the skirt and the boat. I have to dump the 420 every half-hour or so. I should probably measure it someday, but I'm guessing it's a two or three gallons every time.
I contacted Pyranha to ask if they had any suggestions and they recommended a Snapdragon lip-lock skirt. I bought one, which helped a little, but I'm still dumping way more than anyone I boat with. I also bought some foam rim tape from Bomber Gear which was supposed to solve the problem. Again, a minor improvement.
So, all other things being equal, I'd select another boat. But the bottom line is that I'm planning to get wet anyway, so if I like their boat better, I'll probably buy it.