Eva has never hired expat F/Os, none of the Taiwan carriers have. In fact the two carriers, Eva and CAL are struggling with the authourities right now on whether or not it will happen.
There have been Relief Cmdrs hired at Eva but this is the first time for DE Expat F/Os. The pay at Eva is quite low, about NT$100.000/mo. The rest (benefits etc) is probably just as poor, although I know a couple of Captains over there and they say the rostering is getting better. They both live in NA.