It took me a while, and a period of owning the device itself, but I do like the looks and design of the GN a lot. The solid black, buttonless and curved face looks pretty in press shots but is gorgeous in action. I liked the consistent look of the Nexus S a lot, too.
Still, I can't help but backslide a bit to the original Nexus-ers... The Nexus One still might be my favorite smartphone design of all time, and I wish HTC would return to make a Nexus one day. (Hey, with five of them supposedly hitting this year, chances are good!)
In comparison, the Nexus one is too thick and the screen too small.