I’ve had the Torii MKIII for a few weeks now.  I was of course looking forward to listening to it, but also maybe a bit skeptical that I would hear a big difference from my prior amp (solid state monoblocks).  Skepticism misplaced.  Big difference; immediately apparent.  The Torii provides a clarity and tonal richness that I’ve never heard before in my system.  Very satisfying.  The bass, treble, and bias controls are also very cool and work as Steve describes.  FWIW, I had been wondering if the 25 watts would be enough for my speakers (91 db Golden Ear Triton Twos with built-in subs in a largish room), but I reach comfortable listening levels at about step 5 (!) on the 20-step attenuator.
Thanks Decware for a fine product and great service.