I love the shape and color of this sink.  However, I'm not happy with the black marks that are throughout the sink.  We returned the first sink because the black marks were large and rectangular shaped, like tape marks.  Our 2nd sink still has some of these marks, but they are more random and not as large.  I'm willing to live with the marks because the color is so nice.  After installing the sink, it rocks a little and isn't perfectly flat on the bottom.  My husband is going to find a way to prevent the rocking, because I want to keep the sink.  The glass is made very thick and everyone compliments it.  Overall it's a beautiful sink, but could use a few changes to make it perfect.