Plastic money any where. Review on Citibank MasterCard Credit Card

I am using for last three years. No problem in using international cards all over the world by just paying rupees seven hundred fifty only per year. We will get interest free credit at least for the period 22 days to one month. If we plan to manage our purchasing just after the billing period we can get interest free credit upto 40 days to 45 days. I am holding India Oil International card. For the Rs.125 purchase of petrolium products/or other items using credit card we accumulate some turbo points. These accumulated turbo points can be redeemed for part payment card renue fee. Besides that we can redeem for the protrolium products equal of one turbo point is equal to one rupee. Citi bank send statements well in advance. Online also we can access also possible with high security passward system. I am paying my utility bill like telephone, electricity bill by on line through citi card only. Then what else we want.