I respect your opinion, even if I felt otherwise that day at the show. The Senn rep on location also mentioned that these amps (the m903) had been recommended to him for use at their booth. They just didn't sound right to me, but I heard no other visitors commenting about it while I was there. However, I still believe everyone would of, if they had the opportunity to A/B with the Woo amps right there and then.
Also worth noting: I'd brought my own reference disk, Patricia Barber's Modern Cool MFSL SACD, so I was comfortable with comparaisons as I was walking the trade-show floor, listening to various equipment and pairings. Something one simply cannot do while listening to various recordings, too often chosen by the booth owners to only bring out the strenghts of their components.