I agree with the other posts and have to add that Alex, one of the owners, has impressed me with his willingness to pass along the sources of his knowledge. He doesn't try and pretend to be the Great Mystical Wizzard of Protein-Oz like some hype filled supplement companies. Even his web site is very educational, if somewhat disorganised.
Alex OFFERED, before I even asked, to provide a name and email addy for a supplier rep, in order to check something out. Most companies pretend that their formulas are so proprietary that if they shared any information that they would then have to kill you.
I'm sold on his stuff, his refreshing approach, reasonable cost, and custom blends @ no charge. (NO, I am not affiliated with PF in any way, nor do I get discounts or comps from them.)