Black toilet is certainly a surprise to guest who use the washroom in our house. Been using this for a month and have not had any issues with the product. Toilet functions well for its intended purpose. 

Design note The tank does sit more forward than the average toilet. (See image) Not a big deal, just something to note.  
As well, there is an peculiar design element of a holepeek through in the back flush pipe area. Not sure if anyone would notice unless paying attention to the design features. 
Once our vanity is installed this design feature will probably go unnoticed.