I think Hashing24 is more reliable because of Bitfury is listing H24 in their website. Hashflare is under Hashcoins which is also a hardware maker - I have less time with Hashflare.
Yet my calculation shown, on the next half-off reward expected sometimes 2020, the cost per day will higher than income and the contract mechanism kicks in, cancelling all the contract (if not kicked in earlier)
Thx for your information. One more question :
Is hashflare a russian company ?
Don't worry about that, they based in Estonia
I can say that they paying, more than a year for me, and I get positive ROI
Which pool do you choose? It seems to me choosing Slush give out most
By the default, here's the screen (attached)
I think no one knows for sure - they do have russian language web status page
thx anyway
Precisely, I mean I am not able to go to their office to confirm they are whom they said they are. They claim themselves based in Estonia in East Europe.