Just a note for when you're cleaning it: DON'T use anything even slightly abrasive. Porbably the best thing is straight bleach.
The probelm is that the plastic (aclrculci) that the quartz is mixed with is much softer. So, if you rub at it with anything abrasive, the plastic wears away, leaving tittle "hills" of quarts. Then the dirt (tea, coffee...) accumulates and shows so much easier - even on white! ... which is when you then need the bleach!