When my Fiancee inquired they did CFO in Cebu every weekday not just Tues and Thurs, so as you have to return to get the stamp i saw no advantage in doing the course beforehand. The stamp in the visa is issued in another building but not so far away.
For the CFO they ask for a picture of you together, a photo copy of sponsors passport or birth certificate, they asked my fiancee the maiden name of my Mum, address of my workplace.
good luck
