A better investment would be to purchase your own miner, unless you have a really high lighting bill.

its also huge risk like renting cloud mining
delivery could be so posponed you will never make any profit, instead only loss :/

I am living proof, invested 1 BTC, got 0.02 BTC

What site did you invest on? That is a important thing in the equation here.

There are a lot it's true you should not trust.