Short of providing some type of room measurement tool when implementing a full SAM, I assume they might flatten out some peaks and valleys in certain speakers as measured in an Anechoic Chamber. Maybe some timing issues further up the frequency spectrum.
Roon->HQPlayer->McIntosh C47->McIntosh MC301s>Transparent Super->Wilson Audio Sabrinas w/ Shunyata Denali, Rega RP8, Rega Apheta 2