I've put about 5,000 miles on my SwayPro since last June. Maybe more. I had the Reese Dual Cam previously.
Both are good hitches. I like the rotating chain latches on the Sway Pro a lot, and it rides better due to the tapered spring bars However, it does not control the trailer as well as the Dual Cam. I most definitely feel the bow wave from trucks whenever there is a strong head or crosswind. The Dual Cam was far better in those situations, and honestly I would trust the Dual Cam to control sway better. But, the Dual Cam required minor adjustment anytime there was a big change in loading in either the van or trailer, and it won't work right if its not dialed in.