Hello,
An update from my side after 30 days in Hashflare/
Just to reminder, i started on Dec 10 2017 with 84 TH/s
For now i recovered 39.2 % ( in BTC ) from my initial investment
which makes breakeven at 77 days.
I have been quite lucky as previous mining difficulty has been only increased by 3.1%
Next one ( currently scheduled for Jan 12 ) should be higher, around 10%
I didnt get a chance to reinvest as the BTC price didnt get much higher since my last update ( the only condition i would reinvest was the BTC to make a big jump higher )