These are 4 good reasons to Join workspaces like that :) http://www.sharedesk.net/blog/2013/06/4-reasons-to-join-coll...
I use headphones but i don't mind people talking around me, sometimes it's energizing. Obviously you have to choose the right one.
Good thing is that you can also just try them for a week (and that's what i did at the beginning)...after a while i decided to co-found ShareDesk. :P
You have to find the right one, but YES, they are definitely places where to be more productive. Try!