I had recently purchased some hash power from them and did receive payouts from day one. Their prices start as low as $0.094 per kH/s which I think is very reasonable. They seems to be reliable and have a face which is very important. They have a great customer care support who answered all my queries and cleared all my apprehensions. You can read about them in this forum https://bitcointalksearch.org/topic/genesis-miningcom-worlds-leading-hashpower-provider-602022, http://www.coindesk.com/mining-roundup-walmart-bfgminer-altcoins-cloud/ and google for more details. See www.genesis-mining.com and more here https://cloudmining.guru/wp/genesis-mining-com/ . Again not to forget, this goes without saying, please invest only that amount of money which you can afford to loose.
When ordering hash rate at Genesis-Mining, there’s a field for promo code. Select the amount of hashrate you want to purchase (minimum currently is 1Mhs if you choose Custom!) and use the following promo code for a 3% discount: UMANO_17.Their referral system is beneficial to both referrer as referred person. The referred person gets a discount when buying hash rate, and the referrer gets bonus hash rate based on how much the referred person has bought. This promo code has been given to a limited amount of people. The more people use a certain code, the bigger the discount they may get.