My opinion is that they kick ass, that there are a handful of companies out there that make true "white water" pontoon boats, and you shouldn't waste your time with the rest, and if you plan on fishing with a buddy, get at least a 12 footer...if you plan on fishing alone, go with a 10 footer.

Skookum Products
BadAzz Pontoons
WhiteBear Pontoons
FishCraft

Those are a few of the brands I'd look at...anything that costs less than about $1000 is going to be a glorified float tube that will work great in still waters, OK in mellow rivers, and ought not be used on the gnarlier rivers in the PNW.

Fish on...

Todd