When you take a look at the history of my account from July 2013. You see that I've lost ~6000€ on Z12. I'm sure it was a fault of my installation/bad VPS.
Cause others had better results than mine Z12. After setting up a new installation with a more professional VPS provider it seems to run like other accounts. Even I had a drawdown at the beginning and also now I now that the slider settings with a risk and margin of 10 can create such drawdowns.
My account is still 48% up since July 2014. This is far better then giving the money my bank and playing with my money and giving me 0,5% back...