For me it is actually a 10 but I'm not a whitewater boater and I really don't use the boat for serious whitewater so I give it the 8.
I bought this boat used in the winter of 2002. I have used it for light duty white water - Hiawassee River, TN; Etowah River, GA; Cahaba River, AL; Current River, MO (not really white water). Mostly Class I, but a couple of Class II Rapids thrown in.
As the others have stated it is a very forgiving boat. I paddle it on camping trips also, minus the floatation bags. It handles well loaded with gear. I've considered getting a "touring type" solo boat but since most of my paddling is downriver this boat does just fine. I have to work a bit harder in the "flat stretches" but find the boat paddles well in a straight line when leaned. I use my own combination of "c" strokes and "j" strokes to keep it moving along.