Polling All Classe CA-M600 Owners

I need some good feedback on your experiences with the Classe CA-M600 mono blocks. I've been using a high-powered Cary SS amp but have decided it doesn't have quite enough power to drive my demanding 20.7's. I want something better and something with even greater power to drive anything!

Have you owned, used, or auditioned the CA-M600? Are you confident that they can drive practically ANY speaker? What are your general listening impressions, where do they tend to fall, flat-out neutral, a little to the 'warm' side, a little to the 'analytical' side?