I just recieved my parcel of the Polish diamond paste, and I am very happy with it. It is the first 0.5 micron paste I have tried and it is a whole step up from the red and black pastes I have used before.
It cuts quite fast, and leaves a nice fine edge on the razor. The best edge I have shaved with so far. Not sure how it compares to the amplex pastes, but I am very happy with it.
Anybody else tried it yet?