while counting angels on heads of pins has it’s advantages, musical expression is a bit more complicated than that. nothing wrong with being a great tool for investigation, but does it satisfy? not saying it does not, although i get mixed feedback on that part.
not lived with it myself, so i cannot say.
In Munich he told me that with the SAT he would hear the "faults" of the cartridges and not the tonearm, which is very important for the development and tuning of his cartridges.