Every time I am asked about cloud mining, I say the following 3 things:
1) Are you ready to give your money to someone and not be able to pick them up when you want?
2) Almost all companies earn on the minings less than they promise to pay (taking into account referral bonuses). Here you also need to consider if the company buys equipment, it needs time to logistics and launching, and the company pays out immediately. Do you understand the simple logic that the business will live, then should the income be plus, but not minus?
3) Uncover the graph of the cryptoccurrency, see how the cryptocurrency is growing. You can earn a lot more and less risky if you find a good entry point for the purchase and you will keep the crypto currency 6-12 months on your wallet and observe the security measures. Or if you want to earn on mining - buy equipment.