Worth it for sale price. You do have to use it carefully as it is easy to overdo it. I don’t think every mix automatically needs you to use it, so problem solve with it when a problem exists. When dialed in it can be a nice finishing touch - again when needed
Well done said, if you're starting mixing, you won't need it. Because you won't even hear it or know how to set the parameters. But if you're into mixing for some time, you'll appreciate it. It's not worth for the full price, but catching this on sale is win win. I'm using it on my master bus to tame harhness in high frequencies and it's doing same good job as soothe2, which is not on sale much, maybe never. So if you're a bit skilled in mixing and music production this plugin ain't shit!