I think you made a best choice for your 1st BBag. Black is a basic color, City is the style I like the most, and GGH sure will bring the bag to shine. Congratulation!!!
I'm sure you'll love it. Like you, I have a black city (my first city) on its way. Just check out the balenciaga city club and check out the pics and I bet you'll change your mind and won't be worried at all! Congrats by the way!