Yeah, I had come across that one as well. I can solder well enough but with two tykes now I don't have the free time that I used to, which is why I was leaning toward the other. Still, I just can't get used to the feel of other pads for PC Engine games, the feel of the buttons and the rapid fire just do it for me like no other. Playing Bonk on anything less is just not the same.
Edit: Came across
this testimonial, googling around.
I have the retroUSB one in the 1st link above. It works really good but the turbo switches don't really work. They work, but the repeat is so slow they are of no use.
That makes the retroUSB a definite no-no for me, as this is one feature I absolutely want to preserve. Still, it makes me wonder, does the raphnet circuit have the same or a similar problem? Anyone?