I applied for a secured credit card at BPI last year. I find it very convenient because I don't have to carry cash all the time. When me and my friends go shopping, I ask them to give me their cash and use my card instead. By doing that, I get more reward points and use that cash in short-term sidelines/investments/rackets. I am given 20 days to pay my bills..so I use that time to earn some money.
There are other promos included, like for example, if I use my card within that promo period for a minimum single transaction of P1,000, I get a free food item from Chowking. I was able to take out 2 pork siomai and 2 siopao asado last Wednesday. It's really nice to get freebies! I don't like having credit cards before but seeing as I can be creative with it, why not ;)
Just remember to always use your credit card wisely and pay your bills on time.