To be honest, Xialla is right at least about ROI 
In Ukraine 1 kw/Hour costs 0.05$, but using http://mining.thegenesisblock.com/a/6702612f21 I see that my ~4000$ for Saturn never go back to me 
So what can say people from Hawaii where 1 kw/Hour cost near 0.40$??? 
In Ukraine 1 kw/Hour costs 0.05$, but using http://mining.thegenesisblock.com/a/6702612f21 I see that my ~4000$ for Saturn never go back to me So what can say people from Hawaii where 1 kw/Hour cost near 0.40$???