Hashflare sucks my friend. Their electricity cost is $0.35/TH, where as Genesis's electricity cost is $0.28/TH. Another thing is, hashflaire's contract will expire after 1 year, which is way too risky in my opinion. And when I purchased the contract, it was boom time for bitcoin, so, it yielded me a good revenue. But in terms of bitcoin production, I'm still at 60%. That mean if I had bought bitcoin back in then I could be 40% profitable now.
RE: Bitcoin Mining Profitability Payouts & Review - Updated 29 April 2018