Good day. I tested this miner on xubuntu on 18.04. RX570 4GB Hynix 1200/2020. ETH. Claymore 11.9 = 29.7, Turbominer = 30.5Mh. This is not 10%.
Disadvantages. If the miner is stopped, then the second time it determines a card with 1gb memory and does not work anymore until the reboot. I tried to apply the overclocking option. I set the memory frequency to 2000. Miner freezes. The drawback is that only ETH and ETH Classic are available for mining. Sorry for the translit.