Has anyone worked in a coworking space? Have a favourite?

I'm just starting my search online, and from what I see, there are plenty to choose from. Any anecdotal tales would be really helpful. I'm completely new to this. Thanks!

I live by the Main St subway stop, but have a slight preference for more centrally located locations, because the company I work for might start hiring in the Toronto area in the near future.

Thanks,

Greg