I'm interested!
My current setup consists of a Bluesound Node2, Luminous Audio Axiom W/Walker Mods, and soon to be released monoblocks which I'm sworn to secrecy until their announcement. However, I'll be using the iTube between the Node2 and the Luminous Axiom as well as in place of the Axiom as a standalone preamplifier. I haven't written many "formal" reviews, but I'd definitely give it a shot compared to what I'm currently using of how it (hopefully) improves upon what I'm hearing. Speakers are a DIY build designed by Paul Carmody called "Carrera". I built them with upgraded crossovers and wrapped them in block mottled makore veneer. Cables are nothing too special but soon to be upgraded to Atlas Cables or Mapleshade.