Another brilliant review, Chyros. Always appreciate the research you do for these.
It's a pity, that Sun is really quite a looker. I particularly like the square sharp-edged keys; they give it a nice 'modern' aesthetic despite the board itself being ~20-ish years old. Probably wouldn't be very enjoyable to type on, but it's definitely one of the better looking keyboards I've seen in a while.
It's sad how you can almost chart the decay of the keyboard manufacturing industry as cheaply made garbage became the norm for PC components starting in the late 90s, and now today well made and well-designed keyboards (irrespective of their switch type) have become a complete niche product.