Is it something like this? I have never seen one in person. I would like to know this too. I have a stainless sink that I love because it always looks nice and clean but that's just me. This dark one here is lovely.

Depends on if you have a water softener. Water spots will show up like gang busters! Lime-away will handle it but it is a maintenance issue.

I have a large double sink that is black, made from a composite granite. Love it! I think that it looks very sharp.

With mine (since it is basically granite), it is rock hard. No chipping. I do have to apply mineral oil occasionally to keep it looking its best.

I have a friend with a black Blanco sink. She absolutely loves it.