I bought one on pro-form a few years ago to take with the raft if the wife wants to paddle through some small wave trains. It's inexpensive and fairly durable, but if you're planning on doing long stretches or overnights, I'd have to say that the seat-backs are a little weak. They kind of fold over when you lean against them & they don't support your back well. If you plan on using an IK as your primary whitewater craft, then you might be a little disappointed. If you want to keep it low-budget and light use, they're fine for the money. The Aire Force looks like a quality IK to me, but I've never paddled it or sat it in....
In the modern world the stupid are cocksure while the intelligent are full of doubt.