Yeah... I downloaded the demo and started exploring. It's mind-blowingDearVR is, by my estimation, the best thing going right now in terms of spatialization. At least it's the only one that I'm willing to use because I found that pretty much all the other ones damage the sound quality of the source signal.
It has binaural headphone mode, and a stereo speaker mode. And the built-in Reverb algorithms are really good. The only drawback is it's a bit pricey.