The first time I used any GNC Pro Performance supplements was a little over a year ago and I'll tell you, that was the last time. I used their whey protein and it was simply horrible! It tasted bad, it gave me stomach cramps, and the bloating was just too much. I stoppped using it and switched to Optimum Nutrition Whey and occassionally, if I have a few spare bucks I buy a tub of Syntha-6. But GNC Pro Performance by far has been the worst I've ever had. With that being said, has it gotten any better since? I see they've changed the design of the tub and the details and I wonder, has the stuff inside changed at all?

I doubt it.
GNC products aren't that poor a quality, but they certainly aren't worth what they charge.

And for brands like EAS, Muscle-tech and ON....they rape your wallet (from both ends).

I only buy stuff online. So much cheaper. VitaGlo.com Atkins, NOW Vitamins, EAS, Protein Low Prices & FREE* Shipping! and At Large Nutrition - Your number one choice for nutritional supplements.
Vitamin shoppe isn't too shabby either.