theoretically it may affect your credit scores; however, in my experience, it does not make a big difference. I've canceled a couple of credit cards, when I apply a mortgage, I still got a good rate.
not bad./ p7 J% R8 q; `7 H% ^- Z/ b) `; U
1 ?8 ]2 @+ b8 w/ r5 G: {) N
but compared with other rewards cards, the rate of getting points is not good enough. But if you buy things a lot at their stores, it is very good.