Used a Platinum in the Piccolo today.
Very nice, smooth shave. No complaints at all.
I've been using them for about 6 years now, and never struck a bad one.
Whereas, with the Gillette Yellows (which I also like), I do get the odd one that's a tad rough.
Maybe just a QC thing, but not a 'biggy'. If a couple of blades in every 100 is a tad rough then I can live with that.
I think on a sharpness level I'd rate first to Yellows, GSB's, and then Platinums.
Certainly not a bad blade and well worth trying.