I have not heard of this hitch, although I am aware of Andersen. I did a search on some other RV sites and have found no mention of their "no sway" hitch from any users.
If I were you, I would have to decide how much I am willing to be on the leading (bleeding) edge with a new hitch that few campers have used. I'm sure someone is using it; they just have not posted their experiences on the internet.
This doesn't mean that its not as effective as they claim, but I tend to want to use something with a little public history behind it.
If you try it, let us know what you think.
DW, 3 Kids and our Goldens
2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD