Room acoustics is a very popular topic, especially at audio shows. So I'd like to share my thoughts about this although many might disagree with my opinion. I think poor room acoustics are way to often used as an excuse, if a system doesn't impress the audience. Especially at public demos it is common nowadays that visitors are greeted with an excuse for the bad room.
If a system doesn't play right, it is primarily the systems fault and not the rooms fault! Yes, the room has a major impact on the perceived sound. But still a system should be able to maintain it's basic character. A good system will draw you into the music and transport emotions even if the room is not optimal. The room has an influence on some of the sound aspects, but never on all. A good system will still reveal most of it's strengths in almost any room.
Especially exhibitors who run public demos since many years should have gathered enough experience to set up their system in just about any location and make it sound at least decent. Have you ever attended a public demo where the exhibitor actually stated that the system is sounding the way it is meant to be? This is so far spread into the minds of the regular audio enthusiasts that they blame their room, if the system is not sounding right. Instead they should look for the systems fault.
Imagine a musician does a live performance. Would you also be dissapointed about the 'sound' because the room has poor acoustics? Probably not. If he is good, you will get carried away by the music and enjoy the performance.
Don't let the manufacturer of your equipment get away if you are not happy! Don't blame the room!