It appears to me to make sound placement a bit more distinct, at least to my setup. (foobar2k+jplay, mapleshade clearlink plus, dacmini cx, toxic poison, lcd2)
Listening with jplay or just asio drivers make no difference in sound stamp, same tonality, but a bit more alive due to sound being more dispersed. (imaging I suppose is improved, still not very well defined, but better that asio)
I like beach setting more than river. (hibernate seems to lock my music system without being able to hear music from it)
I notice procesor 1 (core 1) being locked due to jplay service being active, also jplaymini is not generating any page faults due to music playing.
It will be interesting to test jplay with good binaural recordings to check how well 3d imaging gets improved.