[mash]

Have granite and love it. No recent issues with staining, though I did have one or two at the start, I think it may not have been properly sealed.
If it ever stains, it is easy to get out. Mix acetone and baking soda to the consistency of a snow cone (too Canadian a term?). Anyway, cover it with wax paper, tape the edges and leave for 24 hours. Next day, take off the wax paper. You will have dry powder with a stain-free countertop. No long term worries.