I heard the 50ml version was loaded with BA and causes a very painful shot. I had about 10bottles of the 10ml version and they caused me a lot of pain so I sold them to my friends just to get rid of them.
As well they should, i will never use their enanthate again, prop and eq was fine, but that's about it. People have a hard time staying away from the price point aspect of it though..
Many of the people complaining about QV products haven't actually tried them. It's always the same story - "I heard....", "I read....", "someone told me....".
I have personal experience with QV enanthate, winny, prop, tren, and eq with great results. Anyone who complains about pain from the enanthate should try sust sometime