Yeah I just tried out the new C399 and it was awesome (I thought, noob alert) and has purported benefit of being upgradeable in future. Better sounding that the v1 M10 I thought. Sadly, it's a big box -- just too big for our cabinet and I don't think cutting the back out of the furniture is going to be met with approval...I would look at NAD
So I'm waiting on a m10v2 to try out.
But yeah, great clean sound and seems like good value 'trickle down' from the m33.