My 6 picks ...
Co-working is like many businesses, you'll find average providers, near-scam crooks where you pay for every breath you take, and great places. Agora falls in the latter category.
There are many aspects that make it stand out, not necessarily the same ones for every business, here are my own picks: 1/International by design, but greatly connected to China business. 2/ Be at work, but feel as comfortable as at home. Really. Actually, sometimes, even more! Everyone may need a break at times, you know... 3/ Need to develop your business? You'll find all required resources and people in a snap. 4/ Need to get out of your box and to explore new fields of opportunities: take advantage of the conferences on the latest and greatest tech and business innovations. For free. 5/ Need to get back into your box and produce work? Enjoy the extremely calm and work-friendly office rooms environment. If you ask, yes! I've been too in these overcrowded "co-working" spaces that make People's Square Subway exchange at rush hours look like a calm place in comparison (I've been once only though, never went back) 6/ Last but not least, are you, like me, what you eat ? Then enjoy the best kitchen in Shanghai, would be for impromptu lunch events or afternoon conferences, you'll never forget it. For free (sorry, I'm repeating myself). I guess having both founders being cuisine connoisseurs helps on that part.
Oh, then, the cleanest air, the fastest internet, amazing company, was mentioned too I guess?