My missus is also from the Philippines. Providing the correct evidence as posted by people above should make it very easy. Her first one was issued within 24 hours. I booked her a fully flexible return ticket and held some hotel bookings to provide proof, then cancelled them all after the visa was issued and booked flights on airmiles and set up the itinerary that we wanted. We had done several trips to Hong Kong first together, which may have had an affect, as entry/exit stamps in the passport always look good.