I looked into cloud mining when relatively new (say two years ago) as well. I read NO success stories among those (non-tekkies anyway) who tried...
So unless things have changed (probably not), I would stay away.
Keep reading the threads though, maybe someone will come along and offer a legit service that promises a real (= low) rate of return.
Interest rates are extremely low now (and so any passive income at reasonable risk would likely be low), and recall:
"There is no such thing as a free lunch."
Thats why its very recommended for other to stop thinking that cloudmining can be a good source to get some profits, its because all of them are really not worth it to invest on that scheme and hope that cloudmining sad stories will be the strong basis for them to stop investing at those all of them well do some repeated scam modus to steal our money, CLOUDMINING is a bad idea and never been good nowadays.