Pros: smooth, natural, cohesive, incredible bass
Cons: possibly could be more detailed [see below]
I've had the mg6pro for 7 days now and I've been in sonic bliss
Kunlun's review, which led me to my decision to get them, is excellent (Very detailed and thoughtful).
re: the possible con (for me): i might possibly like a bit more balanced-armature type detail but not the artificial-sounding detail i hear with my Westone 4.
Of note, their client services is very responsive, kind, and helpful!