Collective Shuttle vs Private Taxi

There will be taxis ready, willing and able waiting for you at the airport.

http://www.zihuatanejo.net/localtransport.html

I checked Rob's info. We recall having to purchase a ticket for a private taxi, but don't remember seeing anything about the Collective Shuttle. How do we get it?
Does the Collective Shuttle drop you off at some central location, or take you to your destination? (We're staying at a place not far from Plaza Kioto).

(Personally, I'd schlep our bags over to Andy's store and grab the Aeropuerto combi, but She Who Must Be Obeyed says "No way".)