Could I use Directory as a version of Yelp, Meetup.com, or GeoTheme?

http://www.geotheme.com/?

I've also used directorypress.net but it is a pretty poor theme.

Geotheme is a somewhat clone of Yelp. However the programming is awful and pretty much any adjustment needs to be edited in the code after talking with their tech team.

Could this easily be used as a Yelp?

Thank you