It does what it was expected to and I am very satisfied. It did create a whistling noise but if you cover over the channel on the roof bar it stops. I just cut a short piece of the rudder that comes with the bars and inserted it under the front Rhino Rack, problem solved!
This is a nice product. Mine is being used to carry tools for rail trail work, on a large toolbox that rides on a bicycle trailer. It is super fast to load, compared to using straps, and I don't have worry about anything falling off.