Genesis-mining seems to be legit, the questiin is only, how long. Hashflare was also legit but turned already paid lifetime contracts to one year. I think, you will have more profit, when you keep your Bitcoin and buy some altcoins and keep them. They will continue to rise because if upgoing acceptance.
Yes, how long and how to make profit with over 6 months to get return. Plus mining fee, electric daily fee. So why not invest to buy mining computer to do your self as China have many mining factory? Cloud mining almost scam soon or long 
.. I never believe in Cloud Mining, a long time a go i join cointellect and earn 32k doge at this site and i recognized that Cloud mining = HYIP