I just received the vanity today and all i can say is that the $50 spent on the any room in the house delivery was worth every penny.  It would have been much easier if the top was not attached to the cabinet as it weighs 400lbs with the top attached.  The overall build quality of the cabinet is good and the carrara marble top looks great.  I wouldn't say it's top of the line, but i have seen far worse for $1000 more than this vanity.

The only reason I'm giving this 4 stars instead of 5 is that the back splash was broken.  KBC clearly states that the back splash and faucets are free gifts and will not be replaced if damaged.  The way the back splash is packed, i wouldn't be surprised if the majority of them show up in pieces. Lucky for me it was a clean break which will allow me to epoxy it back together 

Pros: Nice vanity.  Good value overall
Cons: Heavy!