Very happy Confidence 20 owner here. I find them very system dependent, which has lead to quite a bit of gear swapping to explore different signatures. They really show you what your components sound like for better or worse.
I tried a bunch of combos that on paper seemed like a sure thing, and some worked better than others. Only after exploring a bunch more options did I end up with a system I love: Auralic Aries G2.2 streamer, Lampizator Golden Gate 2 DAC, Primaluna EVO 300 hybrid integrated, and a Bryston BIT-15 power conditioner. Currently switching my mixed cable collection to be all Veritas Cables, and will be trying a Puritan PSM156 in place of the Bryston to see if that sounds better.
The Confidence 20 is my favorite speaker out of the last dozen sets I have owned though. They will be staying for many years in my system.