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 genesis is one of the name actually which you can choose to invest in but as a experienced with cloud miner I would suggest you to invest into hosting of miners or may be somewhere else but not in the cloud mining itself. Invest only if you have big money and you are strong enough to loose the money and never talk about it again. Why more money? Because this will get you most of the hash rate which you can use to get your ROI faster. However that all seems vague after sometime when the bitcoin prices fluctuates a lot. Better go for hosting your own miner and get rentals out of it. You can start earning decent money in few months only.