I've used Biotest Surge, Protein Factory Recovery formula, and my own homebrew. The results were the same as far as I can tell, increased recovery, amazing pumps and more energy during my workouts. I get my glutamine peptides from Kilosports, dextrose from supplement direct and my BCAA's/Hydro Whey from the protein factory. Be warned, if taste is a major concern go with Biotest then the Protein Factory and finally a homebrew. I tried Nature Boy's lemon juice trick and it did eliminate the puke aftertaste of my homebrew. I wasn't kidding when I said it tasted like puke, the aftertaste was exactly like after you puke.