This thing is smooth as butter, no lie. I've played with it on the show floor. Never been a big fan of any mechanical hitches, but this may change that. It feels so much like a friction hitch, but runs way, way smoother. Word on the show floor is it runs great with a rope wrench srt as well. I'll most likely be picking one up too try. Price is $275.
BTW, it is rated for SRT ascent if backed up, and they say in an emergency you can descend on it with a figure 8 or munter below to add friction. So it will hold you on a single line.