Trust me don't even try to ask for facts. I asked for equipment they use or a verification from a manufacture and he each time does not anwser but tries to say something bad about me. I still want to see equipment verification that is more important to me then a weekly payout as a payout really does not show it was mined and not ponzi. But I have given up with him. Chances are he will attack you and even me for posting this in a post.
There are legit sites. I as always suggest for people to research any investment especially cloud mining. You should not be pushed into buying. But do some research find a company you feel comfortable with. Then after that work on ROI see if it's a fit for you.
Seems shady, a ponzi scheme doesnt have to be a 2-3 month duration adventure with 500% daily gains.
It can be a 50 year old scheme with 2% gains/month. Ask Madoff, he knows how to operate one for 30+ years

Now I`m not saying they are a ponzi, but it certainly raises suspicion.