Finally Genesis still exists while Hashflare, wich claimed to be a competitor, exit-scammed. Genesis seems to have a much better basis of operation like costs and strategies. Hard to imagine it's a scam, running for so many years and I also saw videos of the miners.
Genesis is a reputated company, the CEO has met many mining conferences repeatedly and showed trust. It's always important to know the people behind a project, if they hide it's most likely a scam. In Genesis a transparent team is public and this only shows about Genesis are no scammers, because if they are scammers, law will catch them and bring to jail. There is no safer cloudminer because Genesis is market leader.