It was max investment in fact. An answer to another question was copy-pasted there by mistake. Yep, nothing serious. On one hand. On the other I think it would be difficult for them to process very huge amount of bitcoins/dollars with the same efficiency as the small one.

Rannasha what if they trade altcoin pairs, not only dollars vs bitcoin? Would your estimation be the same then?

CC23 There're 17 pages of positive experiences in the link from my last post But yes, best way to check it out is by yourself.