This card can be actually used to replace 90% of my purchases, since most of the shop owners charge 1-2% for Credit Card transactions offline. In addition, I don't need to worry about getting multiple co-branded cards. I can focus on this one, and hold some non-cobranded ones for other discounts.
The only problem that I can think of is - this card is way too good to be true. All co-branded cards have, at one point of their time, downgraded their rewarding systems. So, what if SBI does that too, as this card is just C.R.A.Z.Y?