yeah ... all talks take place in the same giant room ... you can hardly hear the speaker, projections are almost invisible because the light is too bright.
That being said, if you're taking a seat, you're entering the audio zone, and while not perfect, you could understand the speakers pretty well.
The projections were unreadable I agree, but there were also big televisions that were readable when you were in one of the seats (given decent sized font, but it's the presenters fault if they use small fonts).
Anyway, having dedicated rooms for talks would have been much nicer, no question about it.