I'm using sonarworks plug-in for a couple of month and I remember how disappointed I've been when I enabled it for the first time. My headphones sounded way better without the plug-in - that's what I thought.
But my ears got used to this "unexpected" sound actually quite fast - especially during mix sessions (and not listening to my favourite reference tracks, which was my first test and, as I mentioned above, disappointing).
Long story short: My mixes now translate better on different systems than before, so I'm glad I didn't follow my first impression to ditch it.
Like
jatoth I also don't use it when tracking because it's not necessary and keeps latency low.