Playing on HDT's.  I don't have the vocabulary to describe how good it sounds.  But I was grinning all night.  (Even straight out of the box without breaking it in.  It's very very nice.)   My definition of having the "singer in the room with you" got redefined last night.  "holographic" has new meaning.   I know better than before what high resolution is.
I remember thinking this amp has the power AND the finess I was looking for.  King Kong making a faberge egg.

I'm no expert.  I"m not an audiophile.  My only comparisons are decades of consumer stuff made by something like sonkyioneerwood.  Then I got a Myryad ss Class A.  Then a jolida Fx10 (pp el84s).  Then a zen 2watt.  (this did everything but would thud-out on the big bass hits at the listening levels I wanted, on 97db HammerDynamics and on the HDT's).  Now, the Torii provides the punches I was looking for.  There's something about the Zen I still like more (related to the attack of string plucks).   But hell, I'm making a comparison after just 3 hours on a 3 hour old torii.  vs a 9month old zen.  I look forward to the break in process.  

I was going to build a relay switching system (non shorting!) to hot swap amps on the fly to compare them.  I don't even care anymore.  The torii wins.  I don't need any more convincing than having those singers in my face last night.

It surprised and saddens me to hear some of the tone of threads on diyaudio.  well, I guess that's before the torii arrived.  I don't care anymore.  I'm just grinning now.    

In short, I'm so very happy, and in my limited experience, I can't imagine better.

Awesome to hear about your pleasure!

I remember when mine first arrived. For me it was too weighted toward bass in my space, with my speakers and compared to my SE34I.2+. I kept up with Steve, followed his advice and built some bass traps...and finally I reduced the space between my MG-944 body and plinth a bit, and I am amazed.

So it is really sweet to hear when this amp moves into a system effortlessly. But it is brilliant if it reveals system/room issues too, and once they are fixed, the Torii sings as it was designed to do.

It is such a simple and revealing amp that tube, cable, power changes, room treatment etc are remarkable.

Greg. That is so much new stuff it just makes my head spin! Hope it makes you very happy!