I have the M3C's in my garage for music when I am working in there..... I have them in my HT for ATMOS.

For music duty, they serve a purpose in my garage as background, non-critical music. No base to speak of, but I don't care for this application. I think they sound just fine. Definitely better than a boom box, and they are out of the way and don't take up bench space, and no wires to fuss with.

In my HT, for ATMOS duty, I think they are terrific. It's not as if you get a bunch of sound from ceiling speakers in an ATMOS system anyway. They are for objects. They also blend in well and look appropriate for where they are - in the friggin ceiling. I have M3 on walls for surround and rears. They are way-mo-betta than the Q's in the ATMOS application.

And thanks to Nick and Randy for all the help they gave me setting up my HT system!