There are endless discussions about which company is a ponzi and which one is a real miner.

This is my personal situation with HashOcean

Invested   -0,25493000   11/05/2015
Payout    0,45329960   
Profit    0,65775699   (Includes BTC used for new buys)
Net Result   0,1983696   
     
     
Daily Average   0,002074943   Profit/DFI
Days from invest   317,00   
Total Days to ROI   122,86   Payout/Average
Days Left to ROI   -95,60   Invested-payout/Average
Current Power   453 KH/s   



At the same time I've lost 0,50 in hashnest, now I'm recovering slowly using market to buy/sell GHS, but as I've see in cloud mining you have "honest" with ensured negative profit and scammers with theoretical positive profits that sometimes becomes true and sometimes they run away with your money (I've earn some with hashocean, scrypt.cc and lost with ltcgear, hashprofit, zenminer) but always lost with genesis, hashnest and at that time zenminer suposes to be in the honest group.

So cloud mining is not an investment, it's a lottery, if you pick the correct scammer at the correct time you may win, you will loose in all the other cases.