Any opinions on new type of amps from BMC, Hegel,

Curious if people have heard and have opinions on several 'new style' amplifiers recently released by BMC, Hegel H-30, and Devialet. Seen several systems posted on the 'Gon now using BMC gear, with rave reviews; but I'm always a bit concerned if you must use the matching preamp and or dac, or special inter connects to obtain best sound. I have heard the new Hegel H-30; which is a beast; it was configured in a stereo set up, not used as monoblocks; and had some amazing base response, PRAT, sparkle, and awesome sound staging and presence; just made music seem alive in this room. But I'd like to hear from anyone who has the new Hegel lineup installed; with their thoughts; and what else they considered prior to pulling the trigger. The usual reviewers gave the new style Devialet the best of the best reviews at year end; a 'revolutionary' new style amp; but then I've heard nothing, or read nothing about people who have purchased it. Then there is the new style ML amp; but its way expensive; and out of my price range; so I won't go there. Usually amps design stays pretty constant, and they work on lowering distortion and increasing watts, but I don't know the specifics of what makes these 'new style' amps work; and whether they work well. Thanks for the feedback.