Who uses CAO Software Open Music or Opusmodus ?

Hello,
With regard to contemporary music, are there any members using Computer Assisted Composition (CAO) software such as IRCAM Open Music (distributed free for PC, Mac and Linux platforms) or Opusmodus ( paying and exclusively on Mac) ?
They have the distinction, besides many functions, to offer natively the tools of the Set Theory for composition or musical analysis. Based on the Lisp (Common Music), Open Music uses a visual programming language with which the various functions in patches are modularly connected while Opusmodus is based on scripts with pre-defined functions. It also offers a score editor and a midi player to play the different parts in a sequencer / Daw via virtual instruments (Vst (i)) or hardware.