If you've used them I'd appreciate any feedback on how they work especially if used as a replacement for regular Canti brakes and how much, if any, improvement there was.

This would be on a cross bike with 6800 levers.

I have regular Shimano Canti brakes now and they are 'good enough' but there's room for improvement and someone was telling me Paul Mini Moto would provide plenty of improvement. But they are real pricey so I'm asking to do a little more due diligence than just listening to one person who told me that in passing.