Yakima and Thule both have great products. And the best thing is if you purchase it from REI and you are a member as I am, if you are not happy with it, you can return it for a full refund no questions ask.
So try out the Yakima first and if you do not care for it, try out the Thule.
And when you order it, do not have it shipped to your house since you will have to pay for shipping, you can pick it up at your local REI store, you will have to wait 2 weeks though, but well worth the cost savings.