I was finally putting this together after having it for several months.
First, I was missing one of the hardware packets.  Wayfair was amazing and sent all new hardware even though I didn't need all of it.  NOW to find out it is missing the entire mirror section!!!  I'm partly at fault for not checking to make sure I had all the pieces but this is very disheartening.  I still put it together, there's just no mirror.  But isn't that the main reason for having a vanity?