Yes, and it's out of control. There are at least three different, huge co-working spaces that have popped up near my place. All were formerly businesses that were interesting and useful. Now they're just deadzones of douchebaggery.

Not only are these places generally providers of really lame office space (the people who congregate at co-working spaces are often the worst kind of wantrepreneur -- all talk and "hustle" and zero ability to produce anything of value), they drive up the rents for everyone else, drive out street-level retail and other businesses that help make a neighborhood livable, take up parking spaces during the day, and cause an urban flight problem, wherein everyone leaves the neighborhood when the sun goes down.

IMO, the city needs to change the zoning laws to make these sorts of office desk sublets harder to produce.