It was noisy at times and the chairs were pretty flimsy but that's part of the fun of hackathons. It's a test of a lot of things like time management, concentration, will power, teamwork, communication, etc. Afterawhile you get so focused on what you're doing you don't notice how big it is.

Some teams were in the old YC building as well. I have to say they did a pretty good job organizing. Wifi was perfect, power was everywhere, food was awesome and plentiful, events happened on time.