I've been working with Hashflare since March 2017, invested a small amount ~$200 to give it a try. Currently i'm near break even ROI so i've decided to upgrade my hashpower on SHA-256 cloud mining, so now i have 7.2 TH/s hashpower.
My Dashboard screenshot:
I can say Hashflare is a trustworthy company, always got paid by now. Let's see how it goes, by the end of the month i plan to upgrade my SHA-256 hashpower on 10-15 TH/s more and also try Scrypt or DASH mining.
For this week i will use all earnings to reinvest in SHA hashpower, currently it adds +0.5 Th/s per day, which is not bad!