06-24-09: Peter_sI certainly do! I had posted similar comments re. the ZH270 in this thread way back in 2006:
I must digress, and I think I'll get alot of flack for this, but wrt to the ZH-270, I don't see what all the hubbub is (bub). I had one about 7 years ago, with the NOS tubes, and I felt that it sounded way too forward and aggressive. I heard it on multiple systems, four to be exact, and the sonic character was the same for all. I returned it to David Berning to make sure it was OK, and he said there was nothing wrong with it. I just don't get it. Several friends all had the same impression of the sound. Anyone here on Agon perceive it the same way?
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1141813144
I also did not hear anything special from this amp & I heard it 1 person's system & then invited the gentleman over with the ZH270 to listen to it in my own system. No cigar in both cases, I'm afraid.
In the above thread, you'll read that many others changed their minds over time to agree with my position but you got to go out & listen with an open mind. Once these other people did, they realized that the ZH270 was average, at best.
Now, Berning's new Quattro (I think I got the name correct) that I heard at RMAF2007 is/was an excellent product. Much more expensive but, my gosh, what great sound. superb!
Of course, these are my personal opinions. YMMV.