I'm curious to see the performance/CPU utilization/overhead before expressing an opinion as a tool for building stuff to be distributed. It's going to be a little while before I get a chance to play with it, but there's an introductory price (plus discount for Blue Cat customers) until 10/15, so I have some time.
Just looking over the docs and API there were no particular dealbreakers for me, just a few, "Gee it would be nice if...". But it looks like there is some real potential for those who know their way around a programming environment, midi and/or digital audio just well enough to get things done. I'm hoping to find out whether more limitations might be caused by the programmer than the environment.