I am trying to wrap my mind around why/where there is a need/demand for this link. It appears to be an enclosed system of fluid/air that can be adjusted/moved from one end of the link to the other (by opening a valve), that lengthens of shortens the link (if an operator can reach it from the seat, otherwise an awkward "get off the tractor" to adjust).
It would not cover the same applications where I now use my hydraulic link as a top arm. I use it for more than just changing the position of an attachment.
When I have the forks on the 3ph, I adjust the tips to engage the pallet. Don't see doing that with this link system. When I am operating the rotary cutter, I adjust the position of the cutter with the hyd. top link, and also raise the rear wheel off the ground for clearing obstacles and for highway(non-cutting) travel.
Will watch for more ideas where this link fits into the scheme of things we TBN'rs do real time. Sorry, not a positive observer so far.