Toytec is a very reputable dealer and I trust their R&D is solid on this new set up they offer, IsaacG is the only person I've found on here that is running the BOSS set up on a second gen and you can see what he has to say about it. I can't wait to give you my own opinion on it. I ordered it yesterday and its on "backorder" so idk when I'll get it but that's ok I can wait.
I'm not worried about toytec going out of business and me being SOL if something happened, the shocks are rebuildable and any reputable shop should be able to work on them. IF is destroyed then it would be easy to find another set of coilovers that paired up well with the rear dakars. I have no worries about that.
I look forward to yours and IssacG's input of the Boss System. How long is Toytech backordered? Do you plan on installing the system yourself or having a local shop do it for you?