The ones I had were a little stiffer than Sanwas - I needed to actually press down instead of just brushing my fingertips over them to register a press.I'm still kinda concerned about the Kuro buttons. How exactly do they differ to the Sanwas? Stiffer?
Will probably get one too regardless, since the driver issue seems to have been swept under a rug and madcatz are pretty slow to announce anything concrete for europe.
One thing about the Kuros is that the edges of the buttons are at a sharper angle compared to Sanwas; it might be a little uncomfortable.