My priority list would be:
beanbags,
large flat tables that allows for pair programming,
non distracting but ever present ambient music,
easy to reach power outlets, good wifi signal,
cool art and space decorations(hey you are at 798 after all =)
p.s I just moved to Beijing this year, is running my own start up out of an incubator on the west side, and loves 798. So pretty excited to read about this!