Big Easy wrote a review of Thule Hull-a-Port Pro Folding Kayak Carrier on May 5, 2011
The only reason I wouldn't give this a 5 star is because it's my first and only kayak rack, so I have no basis for comparison. The one drawback is a lack of locking mechanism. Aside from that, it's excellent. My 14.5-footer is more than secure at highway speeds.