This is available to the following places:
Fairview, Quezon City; Ortigas Ave. Ext., Cainta; Bgy. Sipsipin, Jala Jala, Rizal; Malhacan, Meycauayan, Bulacan; Bolinao, Pangasinan; Mariveles, Bataan; and Ubando, Bulacan. It will also be available at stations in Sierra Madre, along EDSA and Zapote Road, in Las Piñas.
What is the catch? I don't know. The question here is: Is there really a catch? =p