I originally had an AIRE travellar 7-8yrs ago and saw a photo of Tracy Harmons design in AK a few years ago. We ended up getting another and built a frame for them. Pros: Very stable, holds a ton of gear, very quick (loaded down faster than a cat or raft) Cons: most expensive way to go, very heavy (mine anyway), and could be problematic if ever wrapped (ive never done it). All in all, ive been very please with it and have tackled all kinds of water. Shallow rocky boulder gardens to big swirly hydraulics, it handles just as good if not better than anything else.