When someone comes to your home and totally bags your whole hifi system? ...
Rocket, that he was rude is perfectly clear - if you don't like somebody's system, there's no need to insult the owner, just say something general and avoid direct comments.
But that you were in any special situation, you were not. Here's what happened to me, though I was just auditioning, not selling.
After installing my 1041 speakers, driven by my Karan integrated (rated at 2x180W/8 ohms), I got a few old friends to come along and bring their own music.
One said the sound was very dynamic, very much "alive", but said he was irritated by "too much detail" - ???
Another said there wasn't enough bass for his tastes - 5 minutes with the Blue Man Group CD convinced him he had boom boxes at home (he is aware his speakers are way below par in his system, I must add). The rest he liked.
The third, a sworn-to-the-death tube man, said I was an immoral bandit, because what I was listening to was essentially a SET sound without any of the SET problems and backed by solid state power. He owns Conrad-Johnson, VTL and Infinity Kappa speakers.
And so forth. As many tastes as there are people.
The REAL question is - are YOU pleased with your system? You do not need to explain your answer to anybody. Disregard a few rude specimens you are bound to encounter along the way.
Cheers,
DVV