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. , B* s/ |' a5 G( ^9 v6 L5 J o4 J l( ]; l/ ~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.