I used the Andersen no-sway WDH for a few years. It worked great for me.
Initially I had an Eaz Lift round bar WDH and a friction anti-sway bar. It was a nice improvement going to the Andersen.
The biggest difference for me was the much improved anti-sway function - no more excitement when big trucks passed me.
Other improvements were less porpoising (up and down bounce), easier hookup, much less noise when turning and no more grease stains on my pants and shirts from the ball and round bar couplers.
Ed