OK, I finally got it installed (aborted the instruments download) and had a couple hours to play. So far it's going well. As others have commented, it is very snappy, especially when restoring a saved project with Kontakt instruments. (Must save an image, because I don't even see the nki's loading - they're just instantly there.)
I'm embarrassed to admit that it took me an hour to figure out how to float the MIDI editor and Transport windows! Sheesh, that's a bizarre scheme. But of course it makes sense - once you crack the code.
My own presumptions were making me run in circles, assuming there
had to be a button or a context menu. Like SONAR does. Sometimes, you just have to set aside everything you know. Not just the SONAR way of doing things but also Windows and general UI conventions.
Maybe I've just gotta think like a German!
Or maybe not. I lived in Germany for over two years and never got any of their jokes.