Flex Air Pinbox is for sale- any reviews?

Since I started this thread I thought I should do all the courtesy of giving my own review of the flex Air pin box. We set off in March for TN, SC, Fl and thence back home to South Texas. We had not gotten more that 500 miles before I had had enough and decided, despite the dearth of reviews to take a chance and buy the new flex air. It wasnt until the Tampa area that we were able to get one installed at a Camping World so my review is limited to just the roughly 1000 miles from there to Victoria. Further my review is even more limited because my unit had a leaky valve which meant that after a couple hours my flex air had no air and therefore didnt flex. Filled it up twice on the way back. So this is a review of the four or so hours that the thing was working as designed. My conclusion was: Wow! I really liked it. Briefly! It really seemed to moderate the chucking and the bucking, of which we would get no small amount on the less than perfect roads. The expansion joints could be pretty brutal. The flex Air took a lot of that out of our ride. The leaky air valve was suggested by the kid at camping World after I called in to see how they were gonna deal with it. He was right. I took it off, slapped some locktite type of product on it and though I have only towed it a few miles since then I do believe that i fixed it.