suitable for class III+
I used the AF as a rental equipment before, and recently bought one for my wife who stopped hardboating because of a knee problem.
overall, the boat is very solid and maneuverable. The straps are greaet for keeping you angle on ferries and peelouts, lifting/dropping edges diring eddy turns and hole punching/surfing. It's really as close to a whitewater hardoat as you can get. For a "regular" paddler with no extraodinary skills, this boat is ok on cl iii+ to iv-.
I tried to roll it up, but no success. I guess the straps are insufficient for the eskimo roll and the boat is wide, too, as any IK.
AF is an older model, but still arguably the best IK on the market.