I think that's the thing, with the ZS10 PRO. They have just such an infectious sound signature. I keep going to this set, whenever I wanna just forget all the technicalities and just enjoy whatever music I'm in the mood for. I've never listened to a song on these and thought, "these sound terrible with this song". They may not sound perfect on every type of music, and there's always other sets that might sound better on this track or that track; but no matter what I listen to, they always let the music shine thru. Imho, that's a sign of a very good iem. I'm happily satisfied with the SQ, and I can't rec them enough to anyone who just wants to enjoy their music.