A Paragraphic EQ Plug-In that I doesn't make me angry.
This EQ is really fantastic. That's quite a statement coming from me since I generally hate EQ Plug-Ins. I've always complained that EQ Plug-ins (Paragraphic ones, anyway) don't have "The Sound" of a regular old console EQ. The Waves stuff generally makes me less angry. But... This thing is what I've been waiting for. It's great because it can do subtle things. And... You can also totally beat stuff up with it.
I'd say it's greatest feature is the different hardware models available on a "Per Band" basis. In other words, you can have an SSL modeled band and a Neve modeled band in the same Plug-in. The "Digital" models are great because one of them can do an asymmetrical bell curve meaning that the effect of the band is different above and below the frequency center. That's amazing!
Beyond that, there's a built in Spectrum Analyzer. This is great because you can see what you're doing to the material. Never again do you have to worry about going too far.
Another notable feature is the Mid Side capability. This allows one to EQ the Sum and the Difference separately. I've found this to be fairly useful in many situations. It also can turn your reverb bus into something completely insane (If that's what you're going for).
That's not all. There are many other great features. I just don't mean to go on and on.
Bottom Line: This EQ enables me to work faster because it sounds great sooner... If that makes sense. I don't have to try EQ after EQ to get what I'm after. I've used it on all that I've done since I bought it.