I've recently changed from my ProAc D15's, which simply don't work in my newer, smaller listening space, to some ATC SCM19's.
They've been bedding in for about ten days now and are just coming on song.
This morning, I played Sandy Denny singing "Fotheringay" - solo voice with acoustic guitar accompaniment - and although I'm very familiar with this track, for the first time, I could clearly hear Sandy's breath passing through her throat as she sang! This level of detail is a whole new world.
There's no loss of musicality either and the soundstaging is rock solid. I'm SO impressed.
So after purchasing this astonishing pair of speakers, here's my modest contribution to the thread: