Well, I've had the M2s for two weeks or so.
On stands, 18 inches from a wall, they sing pretty good.
Soundstage is big and precise, mids and highs are remarkably clear and honest to the source material.
Makes my blues and jazz stuff really come alive.
Definitely would benefit from a subwoofer, but what bass the speaker does produce is smooth as silk.
Far as I am concerned, my new reference bookshelf, although those Bryston bookshelves look awfully interesting.

I found an old Yamaha rx-v663 receiver that seems to be doing a half decent job driving them.
Now I got a bug in me to have a listen to the floorstanders.