a friend told me about this site.
when I email him this site good or no .
he told me : (doublebot is a legit doubler since march 2015)
so I think good for work..
me self going test this site.
Well if that's your choice, then so be it. Hope you can afford to lose what you are going to invest.

Anyways you also need to be patient since this is not the usual doubler you can see. Good luck!