Maybe I shoud stay out of this one, especially as I do not have time to read all of the posts, but.......
The critcism that not all of the vendors disclosed all of their specs is no reason to find fault in them. Most here have been around high-end long enough to know that specs, i.e. measurements, are just design tools for the guy who design the stuff. (We have been making and selling amps, conventional and switching, for over 20 years. Without once "disclosing" all of the specs. Is there any reason to?)
Yes, a lot of guys like to look at the numbers, but since when could anyone say how something will sound based solely on numbers? If we could, tubes wouldn't be as popular as they are.
Several have already said so, but let me reiterate as a manufacturer of switching amps:
Synergy.
Not every amp will sound good in every system. If they did, we would all own Carver amps driving Bose speakers. But obviously, that is not the case.
Yes, these amps are not for everybody. I do not know of anyone making them that claims such.
Likewise for fine companies like AtmaSphere. I don't see Ralph telling anyone that tube amps are the only way to go. (I only point out Ralph as I have friends that own his products, and they sound good in the right system.)
Martin Collums and his friends may not like them, and I can accept that. To each his own. To dismiss them all, based on his perceptions would not be an enlightened positition. Listen first, then make up your own mind.
To be perfectly honest, I have heard listeners say that our (switching) amps sound "very tube-like".
In the right system.
I have personally heard them sound like crap.
In the wrong system.
Synergy. Simple as that. Need I say more?