I have never been to a coop designed for developers. But one of the most annoying things about coffee shops are all of the non-developers (or rather non-workers) who are there just enjoying life/relaxing and laughing/talking extremely loud. I have nothing against them having a good time, I just find it impossible to block out personally.

I would like to pretend the goof off level would be much less in a place designed for work and people seeking similar