I bought one when they had their Christmas sale and took it for a 50 mile trip today as our winter trip was cancelled due to family. Did some 2 lane and interstate and so far impressed. Most noticeable difference was bridge transitions. Didn't have the jarring or feel the pin weight transfer to truck suspension. Even the wife commented on the difference.
Also impressed with the construction of the hitch. Looks to be very good material and actual quality workmanship which is getting rare these days. I did order the on board air compressor which comes with a power cable and splitter for the trailer 7 pin.