Sir,
About 6 months ago, I auditioned the C298 in place of my tube/solid state hybrid amp and was amazed, to say the least. Then, after trying it out and straining to not "jump the gun" and just buy it, I read both Robert Harley's and Kalman Rubinson's reviews of the amp and was astounded at how precisely they described what I had in fact experienced when I had it in my system. I am a reviewer skeptic, to say the least, but this really surprised me.
Moreover, as far as power, I sure recommend that you look at the power specs in the Stereophile Tests as well as others on the web about this guy. I could never want for more and it has a very decent load to handle in my system.
FYI, I am running a PSA Directstream DAC directly into my C298 with Kimber Select interconnects and driving 13 feet of biwired Audioquest into a pair of Vandersteen Treo CT's.
Best money i have ever spent on this crazy hobby in many decades. Good luck with your choice, whatever it is. I believe Class D amps have really become remarkable choices.