I think you should be careful when you investing in cloud mining because most them are ponzi and they will scam you sooner or later the example of that is hashocean they were famous because they pay people for 4 years and they were the longest ponzi operators in bitcoin's history but on June 30, 2016 they ran away along people's money estimating around 30k btc. Anyway if you want to invest on cloud mining i suggest that you should make a research about it and be careful on ponzi cloud mining.