I was at last year’s C3 and I remember the NoisySquare being not as exciting as it seems to be. A lot of people pass by it because it’s in a prominent location but it is (was) also in a small area so people tended to pass through instead of stay. I spent a lot of time in the lower level which was where the majority of assemblies are located and certainly where the most raw human energy was found so my recommendation is against a NoisySquare sub-assembly.
I’m also a bit biased because @igel and I are already participating in fc-slash-eight assembly (it’s about software I wrote, I can’t escape it), it’s registered for 10 people and it would be nice if we can ask them to put our tables next to one another. WDYT?