Happened to be trolling around reverb plugins to hear them. I'm not a fan of most I hear like I was for hardware units I've owned.
I love my TC Electronics rack unit and looked into plugins by you need the ProTools HDM to hear them.
But online someone had comparisons of some well known reverbs (i.e. Lexicon) and also had 2 free ones. This one can do mac.
My guess is many of you already know about this. I think I saw it once before myself. But was just playing around and it sounds pretty darned good. That is, good enough that if I paid $50 for it I'd not think I wasted my money. However, it's for FREE: