I will say the tile is neat, but it is much thicker/larger than I had expected.
Having been PP before, downgraded last year to LTP again and now back to PP, I have seen no discernible treatment between Plat or PP. In fact, every hotel thanks me for being Platinum and not PP.
My way of looking at it is that I am a platinum member, but I get an extra catalog gift once a year in the mail.