I use genesis-mining almost 2 years.
Its just perfect. Payment every day always on time.
I use sha256 hash for BTC mining
Not good idea to invest in bitcoin cloud mining almost all are scammer or not really profitable.. better to stay away from them..
Much better to learn in trading it is more safier low risk not the same as gambling but there is still small risk.. and you can make more profit than gambling..
It's very risky and the most possible thing to happen to you is that you can get nothing from it. At the same time your investment will be run away by the site. Since it's very attractive to invest to them with the hash power. Still don't be deceived by it, there's no such thing as trustworthy when it comes to this type of investment.