So since I've actually run one of these as a prototype during the 2013 rafting season on Clear Creek I thought I'd contribute my thoughts.
CC is run lower commercially than both the Noli and Chattooga, it gets thru skinny sluts (southern fried creekin' reference), but it's not worth much else. As started previously, you wouldn't want it sideways in a hole, it's terribly hard to dig out of a solid side surf, kinda fun if you're only concerned with your safety. The wiener boat is pretty tippy and I've even seen it pinned in a pinball/tight slot situation. They don't track like a mini max or a regular hyside, more like a shredder/cataraft. I imagine that could be attributed to it's intention as a "creek" raft. I also found it took far more effort to pivot from the stern than a full-size raft with comparable crew.
Having done Clear Creek from Dumont to 260.5 in one of these things from 400 down to 100 cfs for a total of approx. 100mi. During 15-20 commercial and recreational trips I feel like it's design and intention are novel but very niche driven and while I'd run anything in a mini-max I wouldn't feel secure running solid class IV or big water in this thing. Fun, but not the ideal boat for my preferred style of boating.