It seems that only Pro Tools and Reaper are working now. Please make it possible for Cubase or Nuendo.
+1 here.
I would use it more often and include it in my workflow if I could. Right now, I spend so many time exporting sources from Nuendo, processing and re-injecting that it’s harmfull whereas iZotope RX, Melodyne, Revoice Pro or Vocalign are working like a charm.
Please take in consideration more and more people are using Nuendo for Video Game content, which is a big apple pie nowadays 
I would consider buying Matchbox as well if you made it compatible, but that’s another topic 