To be honest, I have an investment in Hashflare. But I am really worried about it. They are not trusted at all and it is going to worse. Minimum withdraw limit is 0.05 BTC which is stable right now. The referral program is a mess. They do not pay your bonus payment. Probably, they keep all bonuses themselves. I think they are going to exit and working on that right now. I hope they wont. I do not recommend to invest Hashflare right now.