I have been intrigued by these and several similar boats from "Down Under". We have a great dinghy (which will go with "Thataway" if the buyer wishes. So I never really continued to investigate. The boats are not cheap--they begin at $1800 for the 260 XL (which is PVC--the Hypalon boats are much more expensive.). There is at least one report of a 2015 boat having its seams all go at about 3 years of age The warrantee is 2 to 3 years....the report was for a boat which had been stored inside, in climate controlled environment....
I see some advantages, and perhaps some disadvantages. My understanding is that the most recent boats have a number of improvements. It seems to me that the open bow could be very positive...but we often take dogs to the beach, so we are careful about getting onto the boat--usually a sit down as we wade out, on the pontoon, not jumping onto the floor..
Videos I have seen do show some wetness in real chop--but that would probably be true of any boat. My standard of comparison is always going to be a 12.5' RIB we owned. We ran it with a 15 or 25 hp--and with a good V bottom, it would handle chop very well. Problem was it weighed about 350# or more depending on motor, fuel etc...
I would love to try, or see one of the C Brats try one of these.
Saturn has a 12 foot inflatable Cat which is similar and costs much less but weight is in the 125# range--too much for us to deal with on a C Dory, although it could be hoisted w with a Garhaurer Davit. there is also a 9'6" version which weighs 90#.