Honestly the best drive-shaft I've ever used.
I've played Axis and Demon Drives before this, and they both claim to have absolutely zero latency, but this thing actually delivers. Worth every penny for performance.
The only issue I've actually had with it is a bit of a weird one. I've found it's not too hard to bend. I bought this as a replacement for the one that came with my pedals when I bought them new. A small snare drum was dropped onto the drive-shaft while it was attached to my pedals, which caused the thing to bend. While it didn't hinder performance that much, I was still really amazed that such a small weight dropped a very small distance could do so much damage, but there we are.