Good timing, I was just gonna write a short review about them.
I ordered a free sample of the unflavored whey isolate, and used it for the first time last night in my pw shake w/dextrose. It mixed WAY better than my concentrate from supplement direct, of course, it is isolate.
Then just now, I wanted some protein/water in me before my cardio jaunt, and I gulped it down. Mind you, most protein companies have this equation for protein flavors:
unflavored = tastes like ass, i.e. i wish i had some nasty chocolate over this
But their unflavored was smooth and had very little taste. I think it's well worth it, and my next order will be from them rather than SD.
Sorry, I can't help with the flavors, though.
As for stuff from PF, I can't comment on quality, although I'm sure both are top-notch, but anything I've ever had from PF (Penta Pro and Anabolic MRP) were both very gritty, but they're not pure protein.