Just to clarify. You will not get 2 years of Eth mining. As Ethereum will move to POS later this year. At this point you will have to change what you are mining. Having personally used genesis mining in the past I would not recommend cloud mining. I have built my own mining rigs which will return 100% of my investment in around 2 -3 months.
In my opinion a much better investment, as I own the hardware which I can sell later on as well.