Also in all these articles they say "its too noisy..." Has no one ever heard of headphones. They let each individual employee get the best level of noise they need. Want it quiet get a set of sound isolating headphones and put on quiet background noise. Do you like music to work to go ahead and put that on. Do you like the organic background of distant communication and the peaceful methodical hum of the ventilation system. Leave the headphones off and enjoy it. What I have found as the big turning point is you need to have an entire office that is respectful of others no matter what floor plan you have. If one worker insists on playing loud music or having conference calls all day no matter what set up you have chances are he will be annoying his direct neighbors.
As an aside as much as I like my open office I would trade it for a botanical garden. I love gardens and would gladly set up shop in a nice greenhouse maybe with some birds in it, and a nice central waterfall and river running down the middle.