I tried the demo in early 2012 to mix a couple of demos of mine.
Th great thing is that, if you use it in conjonction w/ your DAW of choice, it forces you to make the distinction between the writing/recording/arranging process and the actual mix; export each track to .wav and mix it from scratch. And that can really help you focus on the actual mix instead of constantly going back and re-recording and arranging. The ergonomics are terrific (though this might not be much of a deal for Sonar users because you guys have the Pro Channel stuff integrated into the console.
My experience of it was that it was very easy to create a good sounding mix.
The not so great thing, if you use it in conjonction w/ your DAW of choice, it forces you to make the distinction between the writing/recording/arranging process and the actual mix.
And if like me you're a jack of all trades, writing, recording, sequencing, arranging and mixing your own music, by the time you reach the actual mix phase, you have a bunch of busses created ad tracks routed to them, and you most likely already started using plug-ins to EQ, compress and further process that stuff on the fly. You've probably frozen a bunch of tracks, you may have loops here and there, and you have processing going on in real-time that's actually an integral part of the arrangement.
That's how most of my own projects en up, hence the reason I hesitated for a minute - but for $20, I'm sure I'll find something I can do with it.