Never used console emulator much when it first got added to Sonar, seemed to mud up my clear mixes.
I did re-visit it . . . and found if I didn't crank it too much I learned to like it.
Now I have console emulator included in my "Normal" project startup template, but don't have it turned on.
Don't think it uses much CPU just having it there in OFF position ?
When I turn it on, I mostly like to keep it subtle, especially if the mix is fairly thick already, as it does seem to add more warmth in low mid frequencies, which is not always a good thing.
I definitely prefer to add it after a mix is more developed, instead of having it on from the start of mixing.
What year did they add the console emulator ? When I opened an older project from 2009 (into X3e), the console emulator is already "pre-inserted" on all audio tracks in the off position. How cool is that.