I used an Axiom Journey on my trip across the US along the Pacific Coast. My bike tended to wiggle at the rear end pretty badly but I don't think this is the fault of the rack. I was using a road bike with very short chainstays which I think is what caused the wiggle. That and I was also way overloaded!

I have since used that same rack on my Surly LHT for commuting and some light touring and never had a problem with it. For the money I doubt it can be beat and I also doubt that the Jandd racks are much better.