We hear both sides: some folks love black granite, and some loathe it. Of course there are pros and cons to the color of every surface. Black cars show salt in the winter, white cars show dirt in the summer. A black shirt shows lint and is a target for bleach spills in the laundry room, while a white shirt attracts orange soda and spaghetti sauce.
I personally love black granite. Sleek and sophisticated, it looks fantastic with everything, and leaves the plan for décor wide open. Orange walls, purple walls, beige walls, why not! Black coordinates with it all, and looks amazing with any pattern or finish you throw at it.
It does have its cons, however. Just like the hair from my white cat clings to my black sweaters, black granite can show dust, crumbs, and fingerprints. I put up with these little nuisances because of its durability. Black granite is rock solid (pardon the pun). It is an incredibly dense material, and a very hard material. It rarely needs to be sealed when compared to lighter granites, and is very scratch and chip resistant.
There is always a chance that black granite will betray you into looking a little slovenly if a visitor were to show up unannounced, but it also has a classy side that makes any space look like a million dollars.