BDO Installment Card

Last few weeks, I received an email from BDO (no reply email) that I was approved for BDO Installment Card. I researched about this card and I am aware that this card's feature is little different with other CCs. The card is on its way now for delivery. Now my questions are:

  1. Is it worth it to use BDO Installment Card knowing it has unwaivable Annual Fee of 1k? or pa-cancel ko na lang?
  2. Good start po kaya ito para maka apply ng NAFFL credit card sa ibang bank in the future, saying I will maintain good record?
  3. Example I use it for grocery, may interest po ba sya if mababayaran ko naman on time?
  4. How much will be my starting limit? How to know po, call ko ba BDO hehe?
  5. I'm worried na maship yung card sa ibang bahay at gamitin nila, lol, activated na po kaya yun? Or need ko pa iaactivate bago magamit?
  6. For payment: I read, I can pay thru BDO online banking for my dues, pede rin po kaya sa Gcash mag bayad ng dues for this CC?

I hope you can help me hahah, first time user. Thank you.