So far the best miner available. I am getting about 220 mh/s per each GTX 1070 (mining with 7GPU) + the processor. Unfortunately the profits calculated by the nicehash are about 15-25% lower than those on whatto mine. Maybe it has something to do with the conversion of Zcash to BTC automatically - i couldn't find the conversion rate anywhere, but I am not sure ATM.
Profit on calculators are frequently a little bit overestimated...
Nicehash profits are linked to the demand/offer on their hashrate market I believe: which doesn't react as quick as the zcash rate on poloniex and is a little bit below (who will buy hashrate with higher price for estimated mining coins lower than direct buy in markets ?): with the recent increase in price, mining in zcash pool is more profitable for the moment, supposing there is no dump before you moved the coins to poloniex and sell your coins.