So to be honest, I am a bit disappointed about the whole Bytom thing. Paid 2800$ with customs etc. and the performance / profit is not as expected because of the fact they shipped much more units than they initially told.
35 Bytom for about 36h mining. Thats not even 20$ (today). Will keep the coins and see. But I expected double profit at least the first days. But it seems others got their unit way earlier, although i got Batch 1 (Germany).