There are few people on here who are saying Spetz is bad. In fact a lot who think the quality is sub-par think Spetz is doing a great job both with Cust service and handling the quality of his gear. If this quality is alright for you then that's absolutely your choice, some may hate and some may not.
The fact is, if the gear is dose at... Let's be generous and say 60%, what is that other 40% your INJECTING in to your body. Absolutely none of us know. The dude in China who manufactured it knows, and just for me, I don't trust the underground of China to put any kind of filler in my gear. Or it was stepped on along the way. Either way, the higher purity, the more confidence I can have in knowing exactly what I'm putting in my body. Just my opinion though