No, I have pretty much given up on them...no idea how long the car would be down if/when something breaks/malfunctions, if they cannot supply systems, I have to believe that getting parts from them will be worse!
Kinda bummed too cause of the time lost waiting!!!
i don't think retrotek is selling them any more, it seems that Professional Products is the exclusive distributor for that system now. i saw something about it in Mustang Monthly i think. i'd give PP a call and get one from them.