Any cloud mining is a scam. Please, if you're normal and you don't throw money in the black hole don't give a damn to this thread. This week in particular I'm seeing a catastrophic ponzi style scheme around here, I mean, in the past, scammer are not so brazen and the chat, the argumments were much more convincent. Now look at this shit... c'mon...
not any... but almost that.
like @bitjamz said, genesis seems to be legit. they are really mining coins.
but still not a good investment tho.. there are better ways to invest your money. I've seem lots of thread here about the profitability on genesis contracts and it isnt good.