I thought I'd update the situation concerning VISA/Plus ATM transactions in Argentina.
This last week I've only been able to withdraw ARS$300/transaction (but since I've not needed much cash, I've not tested if I can do three transactions/day). Unfortunately I don't have a LINK-associated debit card, so I can't report on any limitations on that network.
I'm still waiting for the transactions to post electronically - I made mine on a Schwab card associated with my Schwab One account. As I mentioned previously I get all ATM fees waived on this card. and the rate of exchange is very close (or better) to the OANDA FX interbank rate.
http://www.oanda.com/convert/classic
John