I was fortunate enough to win a beta copy through Ken Lewis' You Tube channel Mixing Night (check it out - so much great free content for producers/mixers/artists) so I have been using it extensively for the past month or so and am really impressed.
I have Effects Rack By Soundtoys, Movement by Output, Multipass by Kilohearts (and all their excellent plugins), Eventide Harmonisers etc and this gets used all the time in front of those.
One of the best things is, it's so lightweight, that you can put it on every channel. I had over 50 going for a test and only used 15% processor.
What does it do?
In my words: Saturation, modulation and stereo width - while maintaining mono compatibility. Nothing groundbreaking you would think. But it's how it does it. The word vibe is in the marketing but it's spot on. You can hear for yourself on the demo videos. But it's how it sounds in my mixes that matters. And it sounds great. I've won another competition since i got it, and the feedback on my mix was positive (i'm generally a rubbish mixer!) It's the fact that there's no values, and you just have to dial it in with your ears that really works for me.
Wow!! Being compared (and used in front of) all these great plugins you mention, that's a great compliment. Thanks so much for that. And it's amazing to hear that GreenHAAS actually does for you exactly what's intended to do - make you more creative in your productions and mixes! Keep up the great work.