I've to express my unpopular keyboard option amidst the current trend:
I've always thought the Alice keyboard design looks quite ugly to my eyes, and I found it quite intriguing that it sells so well. And most of the Alice variants, e.g. with arrow cluster look even more bizarre and imbalanced.
However, perhaps I've seen so many posts about the Alice design, and perhaps it's GOK - this design has achieved a degree of elegance and balance that I finally found it looks appealing.